Quarter 1 Quarter 1 Test 3 ReviewTest 3 Review

X. Mental Math: Multiplying & DividingX. Mental Math: Multiplying & Dividing

with Whole Numberswith Whole Numbers

XI. Mental Math: Multiplying & DividingXI. Mental Math: Multiplying & Dividing

with Decimalswith Decimals

XII. Scientific NotationXII. Scientific Notation

XIII. Multiplication of Whole Numbers XIII. Multiplication of Whole Numbers

and Decimalsand Decimals

Answers: 1) 235,000,000 2) 7,020,000,000,000,000 3) 4,000,100,000

Write in standard form: Write in standard form: 1) 2.35 x 101) 2.35 x 1088==2) 7.02 x 102) 7.02 x 1015 15 ==3) 4.0001 x 103) 4.0001 x 1099 = =

Multiply or divide mentally.Multiply or divide mentally.1) 300 x 400 = 2) 72,000 ÷ 80 =1) 300 x 400 = 2) 72,000 ÷ 80 =3) 50 x 6,000 = 4) 120,000 ÷ 600 =3) 50 x 6,000 = 4) 120,000 ÷ 600 =5) 60 x 900 = 6) 540,000 ÷ 9,000 =5) 60 x 900 = 6) 540,000 ÷ 9,000 =7) 110 x 70 = 8) 36,000 ÷ 40 =7) 110 x 70 = 8) 36,000 ÷ 40 =9) 300 x 500 = 10) 3000 ÷ 150 =9) 300 x 500 = 10) 3000 ÷ 150 =

Answer: 1) 120,000 2) 900Answer: 1) 120,000 2) 900

3) 300,000 4) 2003) 300,000 4) 200

5) 54,000 6) 605) 54,000 6) 60

7) 7700 8) 9007) 7700 8) 900

9) 150,000 10) 209) 150,000 10) 20

Write the missing number.Write the missing number.1) 23.3 ÷ ________ = .0233 1) 23.3 ÷ ________ = .0233 2) 5.4 × ______ = 540 2) 5.4 × ______ = 540 3) _________ ÷ 100 = .3423) _________ ÷ 100 = .3424) ________ × 1000 = 7404) ________ × 1000 = 740

Answers: 1) 1000 2) 100 3) 34.2 4) .74Answers: 1) 1000 2) 100 3) 34.2 4) .74

Multiply or divide mentally.Multiply or divide mentally.

1) 56.28 x100 = 2) 3.6 ÷10 =1) 56.28 x100 = 2) 3.6 ÷10 =  3) .39 x1000 = 4) 23 ÷ 100 = 3) .39 x1000 = 4) 23 ÷ 100 =   5) .123 x100 = 6) 89 ÷ 1000 = 5) .123 x100 = 6) 89 ÷ 1000 =

Answers: 1) 5,628 2) .36 3) 390Answers: 1) 5,628 2) .36 3) 390

4) .23 5) 12.3 6) .0894) .23 5) 12.3 6) .089

Multiply: 1) 538 x 72 =Multiply: 1) 538 x 72 = 2) 6,865 x 146 = 2) 6,865 x 146 = 3) 3,429 x 279 = 3) 3,429 x 279 =

Answers: 1) 38,736Answers: 1) 38,736

2) 1,002,2902) 1,002,290

3) 956,6913) 956,691

Answers: 1) .00336 2) 874.038 3) .38868Answers: 1) .00336 2) 874.038 3) .38868

4) .0032254) .003225

Multiply:Multiply:1) 1.68 x .002 =1) 1.68 x .002 =

2) 418.2 x 2.09 =2) 418.2 x 2.09 =3) .474 x .82 =3) .474 x .82 =

4) 2.15 x .0015 =4) 2.15 x .0015 =

Answers: 1) 1.2 x 10Answers: 1) 1.2 x 1010 10

2) 6.04 x 102) 6.04 x 108 8

3) 2.3009 x 103) 2.3009 x 101212

Write in scientific notation:Write in scientific notation:1) 12,000,000,0001) 12,000,000,0002) 604,000,0002) 604,000,0003) 2,300,900,000,0003) 2,300,900,000,000

Give the base:Give the base: 1) ___ 1) ___22 = 6400 2) ___ = 6400 2) ___33 = 125,000 = 125,000

3) ___ 3) ___44 = 160,000 4) ____ = 160,000 4) ____ 3 3 = 27,000,000= 27,000,000

Answers: 1) 80 2) 50 3) 20 4) 300Answers: 1) 80 2) 50 3) 20 4) 300

Multiply: 1) 593 x 406 =Multiply: 1) 593 x 406 = 2) 327 x 250 = 2) 327 x 250 = 3) 807 x 540 = 3) 807 x 540 =

Answers: 1) 240,758Answers: 1) 240,758

2) 81,7502) 81,750

3) 435,7803) 435,780