Mental Math # 11) 6700 + 208 =2) 3000 + 700 + 220 =3) 10.3 + 5.7 + 4.2 =4) 10.9 – 3.5 =5) You give $20 for a purchase costing

$4.30 What is your change?6) 550 + 150 + ? = 10007) The sum of two cubed and two

squared =8) 726 6 =9) 11.5 x 100 =10)51.37 10 =

Mental Math # 11) 6700 + 208 = 69082) 3000 + 700 + 220 = 39203) 10.3 + 5.7 + 4.2 =20.24) 10.9 – 3.5 = 7.45) You give $20 for a purchase costing

$4.30 What is your change? $15.706) 550 + 150 + 300 = 10007) The sum of two cubed and two

squared = 128) 726 6 = 1219) 11.5 x 100 = 115010)51.37 10 = 5.137

Mental Math # 21) Which is larger –4 or -7 =2) 3 + -5 =3) 100.5 + 20.1 =4) 8.4 – 3.1 =5) You give $100 for a purchase costing

$65.00 What is your change?6) 70 + 500 + ? = 10007) 3100 x 10 =8) 805 5 =9) 5.3 x 100 =10)1.3 10 =

Mental Math # 21) Which is larger –4 or -7 = -42) 3 + -5 = -23) 100.5 + 20.1 = 120.64) 8.4 – 3.1 = 5.35) You give $100 for a purchase costing

$65.00 What is your change? $35.006) 70 + 500 + 430 = 10007) 3100 x 10 = 31 0008) 805 5 = 161 9) 5.3 x 100 = 53010)1.3 10 = 0.13

Mental Math # 31) =2) =3) =4) =5) =6) =7) =8) =9) =10) =

Mental Math # 31) = -12) = -23) = +2 4) = 05) = -16) = 07) = +38) = -19) = -610) = -1

Mental Math # 41) (-5) + (-3) = 2) (+8) + (-2) = 3) (-2) + (-4) = 4) (-5) + (+10) 5) You owe you friend $20. You earn $15

babysitting. What is your net worth? 6) (50) - (-10) = 7) (-5) + (+3) = 8) -2 - -6 = 9) 575 5 = 10) -2 - +10 =

Mental Math # 41) (-5) + (-3) = -82) (+8) + (-2) = +63) (-2) + (-4) = -64) (-5) + (+10)= +55) You owe you friend $20. You earn $15

babysitting. What is your net worth? $-5

6) (50) - (-10) = 607) (-5) + (+3) = -28) -2 - -6 = +49) 575 5 = 11510) -2 - +10 = -12

Mental Math # 51) (-6) + (-3) = 2) (8) + (-2) =3) (-2) - (-4) = 4) (5) x (-10) =5) You owe you friend $20. You earn $8.

What is your net worth? 6) (50) - (-10) = 7) (-5) + (+3) = 8) -20 x -60 = 9) 555 -5 = 10) 2 groups of -10 =

Mental Math # 51) (-6) + (-3) = -92) (8) + (-2) = 63) (-2) - (-4) = +24) (5) x (-10) -505) You owe you friend $20. You earn $8.

What is your net worth? $-126) (50) - (-10) = 607) (-5) + (+3) = -28) -20 x -60 = 12009) 555 -5 = -11110) 2 groups of -10 = -20

Mental Math # 61) (-2) + (+7) = 2) (-8) - (-5) = 3) (-5) - (-10) = 4) (-6) x (-5) = 5) You have $50. You earn $20 babysitting. You

purchase two tickets for a concert costing $10 each. What is your net worth?

6) Negative 10 squared =7) (+5) + (-3) = 8) 500 x -7 = 9) -448 -2 = 10) Yesterday we earn $230 selling cotton candy.

Last night we earned $150. Our expenses so far is $20. What is our net profit. =

Mental Math # 61) (-2) + (+7) = +52) (-8) - (-5) = -33) (-5) - (-10) = +54) (-6) x (-5) = 305) You have $50. You earn $20 babysitting. You

purchase two tickets for a concert costing $10 each. What is your net worth? $50

6) Negative 10 squared = 1007) (+5) + (-3) = +28) 500 x -7 = -35009) -448 -2 = 22410) Yesterday we earn $230 selling cotton candy.

Last night we earned $150. Our expenses so far is $20. What is our net profit. = $360

Mental Math # 71) (-12) - (+3) = 2) (-2) - (-5) = 3) (-5) (-10) = 4) 4 + -5 = 5) You owe $60. You earn $5 an hour babysitting.

You baby-sit for 5 hours. What is your net worth?

6) -23 =

7) (+5) . (-3) =

8) -10 x –10 x –10 x -10 = 9) -4 + ? = -110) -60 = 3

Mental Math # 71) (-12) - (+3) = -152) (-2) - (-5) = +33) (-5) (-10) = +504) 4 + -5 = -15) You owe $60. You earn $5 an hour babysitting.

You baby-sit for 5 hours. What is your net worth? $-35

6) -23 = -8

7) (+5) . (-3) = -15

8) -10 x –10 x –10 x -10 = 10 0009) -4 + 3 = -110) -60 = -20 3

Mental Math # 81) 3.1 x 102 =2) (-5) + (+1) =3) 10.5 + 20.5 + 0.6 =4) (+5) + (-4) =5) You give $100 for a purchase costing

$90.90 What is your change?6) 7 x 100 + 5 x 10 + 3 x 1 = 7) (-3) + (-2) =8) 729 3 =9) 52 =10)(-3) – (-5) =

Mental Math # 81) 3.1 x 102 = 3102) (-5) + (+1) = -43) 10.5 + 20.5 + 0.6 = 31.64) (+5) + (-4) = +15) You give $100 for a purchase costing

$90.90 What is your change? $9.106) 7 x 100 + 5 x 10 + 3 x 1 = 7537) (-3) + (-2) = -58) 729 3 = 2439) 52 = 2510)(-3) – (-5) = +2

Mental Math # 91) 2.3 x 102 =2) 3 + -2 =3) 50 =4) 9 + 40.3 + 0.5 =5) $10.00 - $6.75 =6) 345 000 in scientific notation =7) (-4) + (+4) =8) 255 5 =9) 4.2 x 1000 =10) 23 =

Mental Math # 91) 2.3 x 102 = 2302) 3 + -2 = 13) 50 = 14) 9 + 40.3 + 0.5 = 49.85) $10.00 - $6.75 = $3.256) 345 000 in scientific notation = 3.45 x

105

7) (-4) + (+4) = 08) 255 5 = 519) 4.2 x 1000 = 420010) 23 = 8

Mental Math # 101) Double 3000 = 2) 3 x 1000 + 5 x 100 = 3) 7.1 + 8.8 + 1.2 = 4) You spend $5.48. You have $10.00.

What is your change? 5) $100.00 + $432.90 = 6) 670 + ? = 1000 7) 542 x 100 = 8) Three cubed = 9) 844 4 = 10) 81 groups of 102 =

Mental Math # 101) Double 3000 = 60002) 3 x 1000 + 5 x 100 = 35003) 7.1 + 8.8 + 1.2 = 17.14) You spend $5.48. You have $10.00.

What is your change? $4.525) $100.00 + $432.90 = $532.906) 670 + 330 = 1000 7) 542 x 100 = 542008) Three cubed = 279) 844 4 = 21110) 81 groups of 102 = 8100

Mental Math # 111) Double 2000 and add 300 = 2) 6 x 102 + 3 x 100 = 3) 8.1 + 2.9 + 4.2 = 4) You spend $5.70 You have $10.00.

What is your change? 5) Half of 400 minus 10 = 6) Multiple 9 groups of 50 =7) 62 x 100 = 8) Four squared = 9) 784 100 = 10) 3.2 x 103 =

Mental Math # 111) Double 2000 and add 300 = 43002) 6 x 102 + 3 x 100 = 6033) 8.1 + 2.9 + 4.2 = 15.24) You spend $5.70 You have $10.00.

What is your change? $4.305) Half of 400 minus 10 = 1906) Multiple 9 groups of 50 = 4507) 62 x 100 = 62008) Four squared = 169) 784 100 = 7.8410) 3.2 x 103 = 3200

Mental Math # 121. < A is a ___ angle2. <‘s B are ___ angles3. < C is a ___ angle4. < D is a ___ angle5. < E is a ___ angle6. <‘s F are ___ angles7. < G is a ___ angle8. Measure of < A is ___9. Measure of < G is ___10. Measure of < C is most

likely 850, 1050, 1350 or 1750?

A BB

CD

E

F

FG

Mental Math # 121. < A is a right angle2. <‘s B are complementary

angle3. < C is an obtuse angle4. < D is an obtuse angle5. < E is an acute angle6. <‘s F are supplementary

angles7. < G is a straight angle8. Measure of < A is 900

9. Measure of < G is 1800

10. Measure of < C is most likely 850, 1050, 1350 or 1750?

A BB

CD

E

F

FG

Mental Math # 131) The complement to a 600 angle = 2) The complement to a 250 angle = 3) The supplement to a 1000 angle = 4) The supplement to a 1600 angle = 5) The supplement to a 500 angle = 6) The complement to a 720 angle = 7) The complement to a 550 angle = 8) The supplement to a 700 angle = 9) The supplement to a 400 angle = 10)The reflex angle to a 700 angle =

Mental Math # 131) The complement to a 600 angle = 300

2) The complement to a 250 angle = 650

3) The supplement to a 1000 angle = 800

4) The supplement to a 1600 angle = 200

5) The supplement to a 500 angle = 1300

6) The complement to a 720 angle = 180

7) The complement to a 550 angle = 350

8) The supplement to a 700 angle = 1100

9) The supplement to a 400 angle = 1400

10)The reflex angle to a 700 angle = 2900

Mental Math # 141) The complement to a 750 angle = 2) The complement to a 290 angle = 3) The supplement to a 1520 angle = 4) The supplement to a 1250 angle = 5) The opposite angle to a 500 angle = 6) The reflex angle to a 500 angle = 7) The reflex angle to a 1200 angle = 8) The measure of angle a =9) The measure of angle b =10)The measure of angle c =

a

b c

Mental Math # 141) The complement to a 750 angle = 150

2) The complement to a 290 angle = 610

3) The supplement to a 1520 angle = 280

4) The supplement to a 1250 angle = 550

5) The opposite angle to a 500 angle = 500

6) The reflex angle to a 500 angle = 3100

7) The reflex angle to a 1200 angle = 2400

8) The measure of angle a = 450

9) The measure of angle b = 900

10)The measure of angle c = 450

a

b c

Mental Math # 151) The m < a =2) The m < b =3) The m < c =4) The m < d =5) The m < e =6) The m < f =7) The m < g =8) The m < h =9) The m < i =10)The m < j =

d

a30o

c b

e f

70o

g

hi

j

Mental Math # 151) The m < a = 1500

2) The m < b = 300

3) The m < c = 1500

4) The m < d = 300

5) The m < e = 1500

6) The m < f = 300

7) The m < g = 700

8) The m < h = 700

9) The m < i = 800

10)The m < j = 1100d

a30o

c b

e f

70o

g

hi

j

Mental Math # 161) The m < a =2) The m < b = 3) The m < c = 4) The m < d = 5) The m < e = 6) The m < f = 7) The m < g =8) The m < h = 9) The m < i = 10)The m < j =

d

a120o

cb

ef80o

g

hi

j

Mental Math # 161) The m < a = 600

2) The m < b = 1200

3) The m < c = 600

4) The m < d = 1000

5) The m < e = 1000

6) The m < f = 800

7) The m < g = 800

8) The m < h = 400

9) The m < i = 400

10)The m < j = 1400

d

a120o

cb

ef80o

g

hi

j

Mental Math # 171) If m <a is 200, then <c = 2) If m <d is 1200, then <c = 3) If m <e is 1150, then <f = 4) If m <j is 1500, then <h = 5) If m <b and < f are 600, then <g = 6) If m <h is 1230, then <i = 7) If m <f and <g are 500, then <b =8) If m <i is 320, then <h = 9) If m <g is 750, then <j= 10) If m <f and <g are 600, then <c =

da

cb

e f g hij

Mental Math # 171) If m <a is 200, then <c = 1600

2) If m <d is 1200, then <c = 1200

3) If m <e is 1150, then <f = 650

4) If m <j is 1500, then <h = 1500

5) If m <b and < f are 600, then <g = 600

6) If m <h is 1230, then <i = 570

7) If m <f and <g are 500, then <b = 800

8) If m <i is 320, then <h = 1480

9) If m <g is 750, then <j= 1050

10) If m <f and <g are 600, then <c = 1200

da

cb

e f g hij

Mental Math # 181) The m < a = 2) The m < b = 3) The m < c = 4) The m < d =5) The m < e = 6) The m < f = 7) The m < g = 8) The m < h = 9) The m < i = 10)The m < j =

da20o

cb

ef

30o

g h ij

Mental Math # 181) The m < a = 1300

2) The m < b = 1300

3) The m < c = 200

4) The m < d = 300

5) The m < e = 200

6) The m < f = 1600

7) The m < g = 1600

8) The m < h = 1500

9) The m < i = 300

10)The m < j = 300

da20o

cb

ef

30o

g h ij

Mental Math # 191) The m < a = 2) The m < b = 3) The m < c = 4) The m < d = 5) The m < e = 6) The m < f = 7) The m < g = 8) The m < h = 9) The m < i = 10)The m < j =

d

a50o

cb

e

f

70o

gh

ij

Mental Math # 191) The m < a = 1300

2) The m < b = 500

3) The m < c = 600

4) The m < d = 600

5) The m < e = 700

6) The m < f = 400

7) The m < g = 900

8) The m < h = 600

9) The m < i = 600

10)The m < j = 1200

d

a50o

cb

e

f

70o

gh

ij

Mental Math # 201) The m < a = 2) The m < b = 3) The m < c = 4) The m < d = 5) The m < e = 6) The m < f = 7) The m < g = 8) The m < h =9) The m < i = 10)The m < j =

da

60ocbe

f

50og hij

Mental Math # 201) The m < a = 500

2) The m < b = 500

3) The m < c = 700

4) The m < d = 700

5) The m < e = 600

6) The m < f = 400

7) The m < g = 1300

8) The m < h = 700

9) The m < i = 700

10)The m < j = 1100

da

60ocbe

f

50og hij

Mental Math # 211) 3000 + 705 + 20 = 2) 9000 + 20 + 70 = 3) 4.1 + 3.6 + 1.9 = 4) 1000 – 230 = 5) $100.00 - $9.90 = 6) 180 + ? = 500 7) 500 x 20 = 8) 5 x 101 = 9) 10 x 27.3 = 10) 590.1 102 =

Mental Math # 211) 3000 + 705 + 20 = 37252) 9000 + 20 + 70 = 90903) 4.1 + 3.6 + 1.9 = 9.64) 1000 – 230 = 7705) $100.00 - $9.90 = $90.106) 180 + 320 = 500 7) 500 x 20 = 10 0008) 5 x 101 = 509) 10 x 27.3 = 27310) 590.1 102 = 5.901

Mental Math # 221) Double 650 = 2) 6 x 1000 + 3 x 100 + 2 x 1= 3) 5.3 + 2.9 + 5.7 = 4) You spend $3.25 You have $10.00.

What is your change? 5) Half of 450 = 6) Multiple 40 groups of 60 =7) 6.5 x 100 = 8) Two squared added to three squared = 9) 6366 3 = 10) 3 groups of 103 =

Mental Math # 221) Double 650 = 13002) 6 x 1000 + 3 x 100 + 2 x 1 = 63023) 5.3 + 2.9 + 5.7 = 13.94) You spend $3.25 You have $10.00.

What is your change? $6.755) Half of 450 = 2256) Multiple 40 groups of 60 = 24007) 6.5 x 100 = 6508) Two squared added to three squared =

139) 6366 3 = 212210) 3 groups of 103 = 3000

Mental Math # 231) Double the sum of 100 and 150 = 2) 7 x 103 + 8 x 101 = 3) 10.8 - 3.4 = 4) You spend $69.90 You have $100.00.

What is your change? 5) 50 + 20 000 + 300 = 6) Multiple 100 groups of 3.5 =7) The quotient of 35 and 5 = 8) Two cubed = 9) 900 102 = 10) 8 x 103 =

Mental Math # 231) Double the sum of 100 and 150 = 5002) 7 x 103 + 8 x 101 = 70803) 10.8 - 3.4 = 7.44) You spend $69.90 You have $100.00.

What is your change? $30.105) 50 + 20 000 + 300 = 20 3506) Multiple 100 groups of 3.5 = 3507) The quotient of 35 and 5 = 78) Two cubed = 89) 900 102 = 910) 8 x 103 = 8000

Mental Math # 241) The difference of 70 and 50 times 2 = 2) 6 x 103 + 2 x 100

3) 21.9 + 7.5 = 4) You spend $25.25 You have $100.00.

What is your change? 5) 6000 + 70 000 + 49 = 6) Multiple 100 groups of 47 =7) The quotient of 50 and 10 = 8) Nine squared = 9) 760 102 = 10) 5 x 103 =

Mental Math # 241) The difference of 70 and 50 times 2 =

402) 6 x 103 + 2 x 100 = 60023) 21.9 + 7.5 = 29.44) You spend $25.25 You have $100.00 What is your change? $74.755) 6000 + 70 000 + 49 = 76 0496) Multiple 100 groups of 47 = 47007) The quotient of 50 and 10 = 58) Nine squared = 819) 760 102 = 7.610) 5 x 103 = 5000

Mental Math # 251) The product of 60 and 5 added to 49 = 2) 50 x 102 = 3) 250 + 350 + 391 = 4) You spend $79.45 You have $100.00.

What is your change? 5) 200 + 900 000 + 4000 + 63 = 6) Multiple 1000 groups of 2.3 = 7) The quotient of 555 and 5 = 8) Six squared, minus ten = 9) 570 100 = 10) 5 x 103 + 9 x 101 =

Mental Math # 251) The product of 60 and 5 added to 49 =

3492) 50 x 102 = 50003) 250 + 350 + 391 = 9914) You spend $79.45 You have $100.00.

What is your change? $20.555) 200 + 900 000 + 4000 + 63 = 904 2636) Multiple 1000 groups of 2.3 = 23007) The quotient of 555 and 5 = 1118) Six squared, minus ten = 269) 570 100 = 57010) 5 x 103 + 9 x 101 = 5090

Mental Math # 261) The difference of 400 and 200 multiplied by 4 = 2) On Saturday we collected $1028.95 worth of

bottles and received $32.00 in donations. Are total profit =

3) 400 + 300 + 342 = 4) You spend $29.52 You have $100.00. What is

your change? 5) 600 + 7000 + 40 000 + 79 = 6) Multiple 100 groups of 4.53 = 7) The quotient of 372 and 3 = 8) four squared, added to twenty = 9) 451 100 =

10) 2 x 102 + 9 x 101 =

Mental Math # 261) The difference of 400 and 200 multiplied by 4

= 8002) On Saturday we collected $1028.95 worth of

bottles and received $32.00 in donations. Are total profit = $1060.95

3) 400 + 300 + 342 = 10424) You spend $29.52 You have $100.00. What is

your change? $70.485) 600 + 7000 + 40 000 + 79 = 47 6796) Multiple 100 groups of 4.53 = 4537) The quotient of 372 and 3 = 1248) four squared, added to twenty = 369) 451 100 = 45110) 2 x 102 + 9 x 101 = 290

Mental Math # 271) Double 320 = 2) 6 x 1000 + 3 x 100 + 2 x 1= 3) 2.1 + 2.9 + 5.7 = 4) You spend $3.89 You have $10.00.

What is your change? 5) Half of 660 = 6) Multiple 300 groups of 6 =7) 6.5 x 100 = 8) Two squared added to ten squared = 9) 6339 3 = 10) 6 groups of 103 =

Mental Math # 271) Double 320 = 6402) 6 x 1000 + 3 x 100 + 2 x 1= 63023) 2.1 + 2.9 + 5.7 = 10.74) You spend $3.89 You have $10.00.

What is your change? $6.115) Half of 660 = 3306) Multiple 300 groups of 6 = 18007) 6.5 x 100 = 6508) Two squared added to ten squared =

1049) 6339 3 = 211310) 6 groups of 103 = 6000

Mental Math # 281) Double 700 = 2) 63 000 in scientific notation = 3) 100.5 + 100.5 + 100.5 = 4) You spend $5.65 You have $10.00.

What is your change? 5) Half of 2010 = 6) Multiple 5 groups of 700 = 7) 0.56 x 100 = 8) The difference of ten squared and five

squared = 9) 575 5 = 10) 2 groups of 103 =

Mental Math # 281) Double 700 = 14002) 63 000 in scientific notation = 6.3 x 104

3) 100.5 + 100.5 + 100.5 = 301.54) You spend $5.65 You have $10.00.

What is your change? 4.355) Half of 2010 = 10056) Multiple 5 groups of 700 = 35007) 0.56 x 100 = 568) The difference of ten squared and five

squared = 759) 575 5 = 11510) 2 groups of 103 = 2000

Mental Math # 291) Double 2000 added to 342 = 2) 780 000 in scientific notation = 3) 100.3 x 2 = 4) You spend $50.90 You have $100.00.

What is your change? 5) Half of 612 = 6) Multiple 200 groups of 70 = 7) 6.27 x 100 = 8) The sum of ten squared and five

squared = 9) 715 5 = 10) 8 groups of 102 =

Mental Math # 291) Double 2000 added to 342 = 43422) 780 000 in scientific notation = 7.8 x

105

3) 100.3 x 2 = 200.64) You spend $50.90 You have $100.00.

What is your change? $49.105) Half of 612 = 3066) Multiple 200 groups of 70 = 14 0007) 6.27 x 100 = 6278) The sum of ten squared and five

squared = 1259) 715 5 = 14310) 8 groups of 102 = 800

Mental Math # 301) The difference between three groups of

five hundred and two hundred = 2) 4555.5 in scientific notation = 3) 200.2 x 3 = 4) You spend $65.00 You have four $20.00

bills. What is your change? $5) Half of 866 =6) Multiple 20 groups of 150 = 7) 6.27 x 100 = 8) The sum of two squared and three

squared = 9) 655 5 = 10) 8.1 x 102 =

Mental Math # 301) The difference between three groups of five

hundred and two hundred = 13002) 4555.5 in scientific notation = 4.5555 x 103

3) 200.2 x 3 = 600.64) You spend $65.00 You have four $20.00

bills. What is your change? $15.005) Half of 866 = 4336) Multiple 20 groups of 150 = 30007) 6.27 x 100 = 6278) Sum of two squared and three squared = 139) 655 5 = 13110) 8.1 x 102 = 810

Mental Math # 311) The difference between five groups of

one hundred and fifty = 2) 735 000 in scientific notation = 3) 400.5 x 2 = 4) You spend $71.00 You have two $50 bills.

What is your change? 5) Half of 1040 = 6) Multiple 30 groups of 70 = 7) 97 x 1000 = 8) Sum of ten cubed and five squared = 9) 723 3 = 10) 52 x 103 =

Mental Math # 311) The difference between five groups of one

hundred and fifty = 4502) 735 000 in scientific notation = 7.35 x 105

3) 400.5 x 2 = 8014) You spend $71.00 You have two $50 bills.

What is your change? $29.005) Half of 1040 = 5206) Multiple 30 groups of 70 = 21007) 97 x 1000 = 97 0008) Sum of ten cubed and five squared =

10259) 723 3 = 24110) 52 x 103 = 52 000

Mental Math # 321) Four groups of fifty decreased by one

group of twenty = 2) 94 000 in scientific notation = 3) 5.4 + 2.9 + 5.6 = 4) You spend $69.00 You have four $20 bills.

What is your change?5) Half of 524 = 6) 5 groups of 500 = 7) 3 x 1000 + 7 x 100 + 5 x 1 = 8) Sum of five squared and ten squared = 9) 590 + ? = 100010) 6 x 103 =

Mental Math # 321) Four groups of fifty decreased by one

group of twenty = 1802) 94 000 in scientific notation = 9.4 x 104

3) 5.4 + 2.9 + 5.6 = 13.94) You spend $69.00 You have four $20 bills.

What is your change? $11.005) Half of 524 = 2626) 5 groups of 500 = 25007) 3 x 1000 + 7 x 100 + 5 x 1 = 37058) Sum of five squared and ten squared =

1259) 590 + 410 = 100010) 6 x 103 = 6000

Mental Math # 331) Eight groups of one hundred decreased

by three hundred fifty = 2) 89 100 000 in scientific notation = 3) 8.3 + 2.7 + 5.5 = 4) You spend $57.35 You have six $10 bills.

What is your change?5) Half of 966 = 6) 40 groups of 50 = 7) 3 x 100 + 9 x 1000 + 5 x 10 = 8) Sum of two cubed and four squared =9) 270 + ? = 100010) 4 x 101 =

Mental Math # 331) Eight groups of one hundred decreased by

three hundred fifty = 4502) 89 100 000 in scientific notation = 8.91 x

107

3) 8.3 + 2.7 + 5.5 = 16.54) You spend $57.35 You have six $10 bills.

What is your change? $2.655) Half of 966 = 4836) 40 groups of 50 = 20007) 3 x 100 + 9 x 1000 + 5 x 10 = 93508) Sum of two cubed and four squared = 249) 270 + 730 = 100010) 4 x 101 = 40

Mental Math # 341) Three groups of two hundred increased by three

groups of fifty = 2) 5 550 000 in scientific notation = 3) 1.5 + 1.5 + 1.5 + 6.5 = 4) You spend $32.50 You have two $20 bills. What

is your change? 5) 972 3 = 6) 30 groups of 500 = 7) (+3) + (-5) = 8) Sum of three cubed and ten squared = 9) I owe seven dollars to my friend. I get my

allowance of ten dollars. What is my net worth? =

10) 78 x 100 =

Mental Math # 341) Three groups of two hundred increased by three

groups of fifty = 7502) 5 550 000 in scientific notation = 5.55 x 106

3) 1.5 + 1.5 + 1.5 + 6.5 = 114) You spend $32.50 You have two $20 bills. What is

your change? $7.505) 972 3 = 3246) 30 groups of 500 = 15 0007) (+3) + (-5) = -28) Sum of three cubed and ten squared = 1279) I owe seven dollars to my friend. I get my

allowance of ten dollars. What is my net worth? = +3

10) 78 x 100 = 78

Mental Math # 351) Double 150 added to 198 =2) 341.5 in scientific notation = 3) 123 x 3 = 4) You spend $40.20 You have five

$10.00. What is your change? 5) Half of 276 = 6) Multiple 90 groups of 90 = 7) (-5) - (-8) = 8) Two to the exponent four =9) 6/30 in lowest terms is = 10) 7 groups of 100 =

Mental Math # 351) Double 150 added to 198 = 4982) 341.5 in scientific notation = 3.415 x

102

3) 123 x 3 = 3694) You spend $40.20 You have five $10.00.

What is your change? $9.805) Half of 276 = 1386) Multiple 90 groups of 90 = 81007) (-5) - (-8) = +38) Two to the exponent four = 169) 6/30 in lowest terms is = 1/510) 7 groups of 100 = 7

Mental Math # 361) Double 551 = 2) 40 500 in scientific notation = 3) 312 x 3 = 4) You spend $73.90 You have four

$20.00. What is your change? 5) Half of 724 = 6) Multiple 40 groups of 600 = 7) (5) - (-4) = 8) Two to the exponent five plus five = 9) 4/12 in lowest terms is = 10) 12/5 as a mixed number =

Mental Math # 361) Double 551 = 11022) 40 500 in scientific notation = 4.05 x

104

3) 312 x 3 = 9364) You spend $73.90 You have four

$20.00. What is your change? $6.105) Half of 724 = 3626) Multiple 40 groups of 600 = 24 0007) (5) - (-4) = +98) Two to the exponent five plus five = 379) 4/12 in lowest terms is = 1/310) 12/5 as a mixed number = 2 2/5

Mental Math # 371) Double 623 = 2) 800 000 in scientific notation = 3) 211 x 5 = 4) You spend $53.50 You have three

$20.00. What is your change? 5) Half of 872 =6) Multiple 60 groups of 600 = 7) (1) + (-4) = 8) Five to the exponent two plus ten = 9) 3/15 in lowest terms is = 10) 14/3 as a mixed number =

Mental Math # 371) Double 623 = 12462) 800 000 in scientific notation = 8 x 105

3) 211 x 5 = 10554) You spend $53.50 You have three

$20.00. What is your change? $6.505) Half of 872 = 4366) Multiple 60 groups of 600 = 36 0007) (1) + (-4) = -38) Five to the exponent two plus ten = 359) 3/15 in lowest terms is = 1/510) 14/3 as a mixed number = 4 2/3

Mental Math # 381) Which is larger 2/11 or 2/9 = 2) Which is larger 5/11 or 4/7 = 3) Which is larger 0.8 or 0.553 = 4) 12/18 in lowest terms =5) 18/4 as a mixed number = 6) 3/10 as a percent = 7) 2/25 as a percent =8) 0.05 as a percent = 9) 131/100 as a decimal = 10) 9/10 of a bars added to 5/8 of a bar is

closer to 1, 1 1/2 or 2 whole bars =

Mental Math # 381) Which is larger 2/11 or 2/9 = 2/92) Which is larger 5/11 or 4/7 = 4/73) Which is larger 0.8 or 0.553 = 0.84) 12/18 in lowest terms 2/35) 18/4 as a mixed number = 4 1/26) 3/10 as a percent = 30 %7) 2/25 as a percent = 8%8) 0.05 as a percent = 5 %9) 131/100 as a decimal = 1.3110) 9/10 of a bars added to 5/8 of a bar is

closer to 1, 1 1/2 or 2 whole bars = 1 1/2

Mental Math # 391) Which is larger 5/9 or 3/8 = 2) Which is larger 6/10 or 11/20 = 3) Which is larger 0.2 or 0.199 = 4) 6/15 in lowest terms 5) 15/3 as a mixed number = 6) 9/10 as a percent = 7) 11/20 as a percent = 8) 0.18 as a percent = 9) 235/100 as a decimal = 10) 5/12 of a bars added to 11/20 of a bar

is closer to 1, 1 1/2 or 2 whole bars =

Mental Math # 391) Which is larger 5/9 or 3/8 = 5/92) Which is larger 6/10 or 11/20 = 6/103) Which is larger 0.2 or 0.199 = 0.24) 6/15 in lowest terms 2/55) 15/3 as a mixed number = 56) 9/10 as a percent = 90 %7) 11/20 as a percent = 55%8) 0.18 as a percent = 18%9) 235/100 as a decimal = 2.3510) 5/12 of a bars added to 11/20 of a bar

is closer to 1, 1 1/2 or 2 whole bars = 1

Mental Math # 401) Which is larger 11/20 or 7/18 = 2) Which is larger 20/40 or 5/8 = 3) Which is larger 0.321 or 0.319 = 4) 16/20 in lowest terms =5) 7/2 as a mixed number = 6) 1/5 of 20 = 7) 5/25 as a percent = 8) 0.07 as a percent = 9) 34/100 as a decimal = 10) 11/12 + 11/20 of a bar is closer to 1, 1 1/2 or 2 whole bars =

Mental Math # 401) Which is larger 11/20 or 7/18 = 11/202) Which is larger 20/40 or 5/8 = 5/83) Which is larger 0.321 or 0.319 = 0.3214) 16/20 in lowest terms = 4/55) 7/2 as a mixed number = 3 1/26) 1/5 of 20 = 47) 5/25 as a percent = 20%8) 0.07 as a percent = 7%9) 34/100 as a decimal = 0.3410) 11/12 + 11/20 of a bar is closer to 1, 1 1/2 or 2 whole bars = 1 1/2