mental maths · mental maths parent/guardian: read the question to your child and allow 20 seconds...

Mental Maths

parent/guardian: read the question to your child and allow 20 seconds to answer

In the top corner of each slide it says what week to doThe slides with the background YELLOW are for Miss P and Miss C groups The Slide with the background GREEN are for Miss B and Miss M groups

1 What are all of the prime numbers under 20?

2 What number is 300 more than 891

3 Round 1,897 to the nearest 100

4 What is 3.5 add 1.5

5 How many sides does a hexagon have?

6 How many hours are in 3 days?

7 Lauras birthday is in 9 days, when is it?

8 Add £1.99, 99p and £2.99

9 What is 20% of 100?

10 I am a number – if you times by 5 add 2 then divide by 9 you get 3.

Week 1 20th April

1 What are the prime numbers between 20 and 30

2 What is 8,511 rounded to the nearest 100

3 How many vertices does a cube have

4 Half 67

5 What does parallel mean?

6 A flight left at 6:15pm and was in the air for 8 hours. When did it land?

7 A plant grew 15cm after one week, then 34cm after two. Whats the difference in growth?

8 Add £4.99 and 89p

9 What is 3/8 of 64

10 I am a shape – I have two different shape faces, 8 faces and 16 vertices. What am I?

Week 1 20th April

1 What is 7 squared

2 What is 2.49 rounded to the nearest whole number

3 How many vertices does a cylinder have

4 Half 35

5 How many days are in September?

6 Scooby Doo the movie lasts 1 hour 20 mins. If it starts at half 3 when does it finish?

7 What is the difference between 39 and 120?

8 Add £5.99, £1.99 and 99p

9 What is the product of 6 and 4

10 I am a 3d shape – I have 2 edges and 3 faces. What am i?

Week 2 27th April

1 What is 6 squared


3 How many edges does a square based pyramid have

4 What is half of 125

5 Write an odd number between 406 and 412

6 What is 50 x 40

7 What is the difference between 145 and 340

8 Add £3.99, £2.99 and 99p


10 I am a number. If you find my square root, times me by 2 then add 5 you get 25

Week 2 27th April

Week 3 4th May

1 What is 10 squared


3 How many vertices does a triangular based pyramid have

4 Write down this number – 5,098,908

5 What are the facts of 28

6 What is 0.893 x 100


8 Fagan has 12 pick pocketers. Each pick pocketer steals 2 hankies and 2 wallets. How many wallets were stolen that day?


10 I am a number. If you divide me by 9, times by 2 then add 8 you get 20

Week 3 4th May

1 What is the square root of 49


3 How many edges does a triangular based pyramid have


5 What are the factors of 40

6 What is 1.3 divided by 100


8 A bus holds 31 pupils. 2 classes of 30 pupils are going on a trip with 3 adults each. How many buses are needed?


10 I am a number. If you find my square root then half me you get 2.5.

Week 4 11th May

1 What is 9 squared


3 What 2 3d shapes typically make up a house





8 Angelika goes to buy an ice cream. She has a £10 note. She buys an icecream cone for £1.99 and a flake for 99p. How much change does she get?


10 I am a number. If you divide me by 7 then take away 10 you get minus 3.

Week 4 11th May

1 What is 497 divided by 7

2 What is 10.35 rounded to one decimal place

3 What time is a quarter hour after half past 3

4 Write down this number – 4, 098, 716




8 Patryk had a £10 note. He buys a burger at £2.50 and a coke at £1.25. how much change does he get?


10 I am a number. I am an odd number between 20 and 30, and one of my factors is 9.

Week 5 18th May

What is 2535 divided by 5

What is 3.476 rounded to one decimal place

A square has sides which are 6cm long. What is the perimeter?

Write down this number – 1,092,890

What are the factors of 32

I have a 100cm long piece of wood. I need 4 pieces of 15cm to make a square. What wood will be remaining?

I triangle has one angle worth 40 degrees, and one worth 50 degrees. What is the remaining one?

Billy gets £3 pocket money each week. He wants to buy a game worth £37. How many weeks will he need to save?

What is the product of 200 and 70

I am a number. I am prime, when halved the number ends in .5 and I am in the early 20s.

Week 5 18th May

What is 1509 divded by 3

What is 2.387 rounded to one decimal place

A square has sides which are 8cm long. What is the perimeter?

Write down this number – 2,832,908

What are the factors of 44

Sonny wants to buy 3 DVDs at £6.99 each, how much has he spent

How many degrees are in a circle?

What is 30% as a fraction

What is the product of 300 and 90

I am a number. I am a square number, doubled I go over 100 by the sum of 14 doubled.

Week 6 25th May


2 What is 3.982 rounded to one decimal place

3 A rectangle has a perimeter of 30cm, the length of one side is 5cm, what's the length of the other?



6 A boat crosses a river, it holds 12 people. There are 70 people needing to cross, how many times will the boat cross the river.

7 What would be the most accurate measurement for an egg – grams, kilograms, stones

8 What is 65% as a fraction


10 I am a number. When multiplied by myself you get a number the same as the product of 3 and 12.

Week 6 25th May


2 How many tenths are in 3.78

3 A rectangle has a perimeter of 42cm, the length of one side is 4cm, what's the length of the other?

4 What is next in this sequence – 1,305, 1,205, 1,105, …..


6 A bus has 13 rows with 4 seats in each. How many people can fit on the bus?

7 What is 800ml in Litres?

8 0.6 is the same as 6/10 – true or false?


10 I am a number. I am a square root number and when 10 is taken away you get -2

1) What is 39 + 51? What is 13 + 17?

2) What is 100 – 63? What is 30 – 15?

3) What time is 10 minutes after 5 past 6? What time is half an hour after 5?

4) How many sides does a hexagon have? How many sides does a triangle have?

5) How many faces does a cylinder have? How many sides does a pentagon? have

6) Write down this number – 23, 403 Write down this number – 3, 345

7) Write down a prime number between 20 and 30 What is 5 x 5

8) What is 7 x 6 What is 10 x 4

9) What is the value of the 3 in the number 4,301 What is the value of the 2 in the number 324

10) What is 3, 456 round to the nearest 100 What is 56 to the nearest 10?

Week 1 20th April

1) What is 39 + 51? What is 13 + 17?

2) What is 100 – 63? What is 30 – 15?

3) What time is 10 minutes after 5 past 6? What time is half an hour after 5?

4) How many sides does a hexagon? How many sides does a triangle have?

5) How many faces does a cylinder have? How many sides does a pentagon? have


7) Write down a prime number between 20 and 30 What is 5 x 5

8) What is 7 x 6 What is 10 x 4

9) What is the value of the 3 in the number 4,301 What is the value of the 2 in the number 324

10) What is 3, 456 round to the nearest 100 What is 56 to the nearest 10?

Week 2 27th April

Week 3 4th May

1) What is 47 + 53? What is 14 + 16?

2) What is 100 – 31? What is 40 – 25?

3) What time is 10 minutes after 10 past 4? What time is half an hour after half past 7

4) How many 100 in 2387? How many sides does a diamond have?

5) How many faces does a square based pyramid have? How many faces does a cylinder have?


7) What is 5 squared What is 3 x 4

8) What is 9x8 What is 230 + 100

9) Round 2,865 to the nearest 10 What is the value of the 2 in the number 482

10) I am a number. If you multiply me by 4 then divide me by 2 you get 8. what am i?

What is 34 to the nearest 10?

Week 4 11th May

1) Add 137 and 143 Add 9 and 21

2) Take 24 from 150 What is 40 – 15

3) A flight leaves Edinburgh at half 2 and flies for 2 and a half hours, when does it land?

What time is 15 minutes after quarter past 2

4) What is the value of the 7 in 27, 890 What is the value of the 1 in 187

5) How man edges does a square based pyramid have How many edges does a rectangle have?

6) Write down this number – 309,708 Write down this number – 2, 386

7) The square root of 64 What is 7 x 3

8) Add 34 and 52 Add 12 and 23

9) Round 3, 780 to the nearest 100 Round 132 to the nearest 10

10) I am a number. If you times me by 3 then add 4 you get 22.

I am a number. If you add 3 then add 2 you get 8.

Week 5 18th May

1) Subtract 23 from 75 Subtract 5 from 17

2) Take 33 from 150 What is 30 – 5

3) A table is 1m long, how many cm is this? Would you guess a pencil to be 15cm, 25cm or 35cm?

4) What are the hundreds either side of 358? What are the tens either side of 58?

5) How many edges does a cuboid have? How many edges does a triangle have?

6) Write down this number – 204,837 Write down this number – 4,876

7) The square root of 25 What is 6x6

8) Partition 168 into its pieces Partition 48 into its pieces

9) Round 2.8 to the nearest whole number Round 224 to the nearest 10

10) I am a number. If you divide me by 2, times me by 3 then take away 2 you get 13.

I am a number. If you add 4 then add 2 you get 10.

Week 6 25th May

1) Subtract 31 from 65 Subtract 6 from 28

2) Take 34 from 150 What is 30 - 7

3) How many metres are in a km? How many mm in a cm?

4) What are the hundreds either side of 210? What are the tens either side of 67?

5) How many edges does a sphere have? How many faces does a cone have?

6) Write down this number – 872,098 Write down this number – 2,970

7) 8 squared What is 7x7

8) Partition 789 into its pieces Partition 28 into its pieces

9) Round 4.6 to the nearest whole number Round 136 to the nearest 10

10) I am a number. If you times me by 2, then add 2 then take 1 you get 13.

I am a number. If you add 5 then take 2 you get 7.

Arithmetic Please write down your working out.

Miss B

Multiply two-digit numbers by 2, 3, 4 or 5 as well as 10 with whole number

answers

Miss M

Use efficient written methods of short multiplication including simple decimals by single digits, e.g. 36.2 × 8

Miss C and Miss P

Multiply with decimals by single digits, e.g. 31.62 × 7, and 3 digit numbers by any 2 digit numbers

Copy and complete these multiplication problems by using long multiplication.

1) 76 x 3 =

2) 34 x 2 =

3) 539 x 10 =

4) 754 x 5 =

5) 28 x 4 =

6) 64 x 24 =

7) 52 x 25 =

8) 38 x 32 =

9) 64 x 42 =

10) 81 x 35 =

Now challenge yourself by trying some of the next questions Þ.


1) 463 x 9 =

2) 933 x 4 =

3) 731 x 8 =

4) 26 x 26 =

5) 37 x 37 =

6) 84 x 53 =

7) 16 x 94 =

8) 533 x 72 =

9) 674 x 76 =

10) 532 x 65 =



1) 46.36 x 7 =

2) 65.92 x 9 =

3) 28.44 x 4 =

4) 31.86 x 5 =

5) 72.36 x 6 =

6) 96.31 x 8 =

7) 59.51 x 3 =

8) 17.65 x 17 =

9) 66.66 x 35 =

10) 91.48 x 24 =

Now come up with some of your own similar problems.

Week 1 20th April

Miss BDivide two-digit numbers by 2, 3, 4 or 5 as well as 10

with whole number answers and remainders

Miss MUse efficient written methods of short division

Miss C and Miss PDivide with decimals (2dp) by single digits and 3 digit

numbers by any 2 digit numbers

Copy and complete these division problems by using the repeated bus stop method.

46 ÷ 2 =

74 ÷ 10 =

87 ÷ 4 =

25 ÷ 5 =

46 ÷ 5 =

83 ÷ 3 =

99 ÷ 2 =

41 ÷ 3 =

68 ÷ 4 =

85 ÷ 5 =



84 ÷ 7 =

96 ÷ 5 =

49 ÷ 8 =

69 ÷ 7 =

81 ÷ 9 =

134 ÷ 6 =

210 ÷ 3 =

140 ÷ 5 =

369 ÷ 6 =

421 ÷ 9 =



234 ÷ 8 =

220 ÷ 5 =

124 ÷ 4 =

353 ÷ 3 =

420 ÷ 8 =

543 ÷ 72 =

665 ÷ 65 =

929 ÷ 93 =

330 ÷ 42 =

861 ÷ 21 =

Now come up with some of your own similar problems.

Week 1 20th April

Week 2 27th April

Miss B group

Week 2 27th April

Miss M group

Week 2 27th April

Miss P and Miss C group

Week 3 4th May

Miss B group

Week 3 4th May

Miss M group

Week 3 4th May

Miss C and Miss P group

Week 4 11th May

Miss B group

Week 4 11th May

Miss M group

Week 4 11th May

Miss c and Miss P group

Week 5 18th May

Miss B group

Week 5 18th May

Miss M group

Week 5 18th May


Week 6 25th May

Miss B group

Week 6 25th May

Miss M group

Week 6 25th May


mental maths · mental maths parent/guardian: read the question to your child and allow 20 seconds...

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