x Numbers Year 5 6 Problem solving www

x/÷ Numbers Year 5 -6 – Problem solving www. Key. Stage 2 Maths. com

Find the number: -between 50 and 100 -its digits have a total of 11 and a difference of 5 5 3 6 7 8 6 5 4

Find the number: -between 30 and 50 -a multiple of 7 -an even number 35 42

Find a pair of numbers with: -a total of 20 -a difference of 8 13 + __ 14 7 10 __ 11 10 6 9 = 20

Find a pair of numbers with: -a product of 24 -a sum of 11 __ 12 6 x __ 3 2 = 24 4 8

I think of a number. I multiply by 5. 40 ÷ 5 = 8 I subtract 3. 37 + 3 = 40 I get 37. What number did I think of? 8

I think of a number. I halve it. double 8 = 16 I add 9. 17 - 9 = 8 I get 17. What number did I think of? 16

Find the number: -a prime number -the sum of its two digits is 5 23 19 17 13 11

Find the number: -a square number -the product of its digits is 24 64 49 36 25 16

Find the number: -a two-digit prime number -a factor of 148 3 7 9 r 1 43 1 4 28

Find the number: -a multiple of 11 -a three-digit number -the sum of its digits is 10 154 143 132 121

Find two numbers with: -a total of 10 7 + 3 = 10 -a difference of 4 7 - 3 = 4 Half of 10 = 5 5 + 2 = 7 5 – 2 = 3 Half of 4 = 2

Find two numbers with: -a total of 300 -a difference of 18 Half of 300 = 150 1 5 0 + 9 = 1 5 9 1 5 0 – 9 = 1 4 1+ 3 1 0 8 0 Half of 18 = 9

Find two numbers with: -a total of 1000 -a difference of 188 Half of 1000 = 500 Half of 188 = 94 5 0 0 + 9 4 = 5 9 4 5 0 0 – 9 4 = 4 0 6 + 1 0 8 0 8

Find two numbers with: -a total of 840 -a difference of 96 Half of 840 = 420 Half of 96 = 48 4 2 0 + 4 8 = 4 6 8 4 2 0 – 4 8 = 3 7 2 + 89 46 0

Find the number: -a 2 -digit number -a multiple of 8 -the product of its digits is 30 16 56 48 40 32 24

Find the number: -between 30 and 50 -a multiple of 7 -the sum of its digits is 6 42 35

Find the number: -2 -digit number -multiple of 7 -the sum of its digits is 9 56 14 63 49 42 35 28 21

(__ 3 + 7) x 6 = 60 60 ÷ 6 = 10 10 – 7 = 3

(__ 6 x 9) + 8 = 62 62 - 8 = 56 56 ÷ 9 = 6

Here are 4 digit cards. Use them to make two 2 -digit numbers that give the largest possible product. 1 3 4 5 1 x ____ 1 5 3 2 0 1 4 ____ 2 1 9 7 3 ____ 53 x 41 = 2173 51 x 43 = 2193 53 x 14, 51 x 34, 15 x 43, 15 x 34, 35 x 41, 35 x 14, 54 x 31, 54 x 13, 45 x 31, 45 x 13.

Here are 4 digit cards. Use them to make two 2 -digit numbers that give the largest possible product. 3 4 5 7 2 1 x ____ 1 2 9 2 2 0 0 3 6 7 5 ____ 3 9 4 2 2 ____ 74 x 53 = 3922 73 x 54 = 3942 74 x 35, 73 x 45, 37 x 54, 47 x 53, 47 x 35, 75 x 43, 75 x 34, 57 x 43, 57 x 34.

Use these digit cards to make the largest possible product. 1 3 4 5 5 1 x 4 3 = 2 1 9 3 3 4 5 7 7 3 x 5 4 = 3 9 4 2 2 7 8 9 9 2 x 8 7 = 8 0 0 4 1 6 7 9 9 1 x 7 6 = 6 9 1 6

1 2 7 x _ = _1 7 x 3 = 21 3 1

21 3 137 8 x _ = _2 8 x 4 = 32 8 x 9 = 72 6 4 4 1 x 4 + 3 = 7 1 x 9 + 7 = 16 9 2 0 7 5 6

1344 7 3 88 1 1 1 3 0 0 4 1 8 6 x _ = _8 6 x 3 = 18 6 x 8 = 48 0 x 3 + 1 = 1 0 x 8 + 4 = 4

3 x 4 = 12 240 12 20 3 4 5 20 ÷ 4 = 5 12 x 20 = 240

864 6 x 3 = 18 48 x 18 = 48 x 6 x 3 8 6 3 48 ÷ 6 = 8 4 8 x 6 2 88 4 2 8 8 x 3 864 2 2

1800 40 45 8 5 9 5 x 9 = 45 1800 ÷ 45 = 1800 ÷ 5 ÷ 9 3 6 0 5 1 830 0 4 0 9 3 6 0 40 ÷ 5 = 8

3240 72 45 8 9 5 9 x 8 = 72 3240 ÷ 72 = 3240 ÷ 9 ÷ 8 3 6 0 4 5 9 3 254 0 8 3 640 45 ÷ 9 = 5

Find 3 consecutive numbers with a total of 21. 6 21 ÷ 3 = 7 8

Find 3 consecutive numbers with a total of 48. 15 16 17 16 3 4 18 Find 3 consecutive numbers with a total of 291. 96 97 98 9 7 2 3 2 9 1

Find 5 consecutive numbers with a total of 25. 3 4 25 ÷ 5 = 5 6 7

Find 5 consecutive numbers with a total of 85. 17 5 8 35 15 16 17 18 19 Find 5 consecutive numbers with a total of 4950. 9 9 0 4 5 4 9 5 0 988 989 990 991 992