Level 2 PSLE The sum of two numbers is 66. One of the numbers is a multiple of 8. The other number is a factor of 20. What is the difference between the 2 numbers?
Number 1 + Number 2 = 66
Number 1 is a factor of 20.
Factors of 20: 1, 2, 4, 5, 10, 20
Number 2 is a multiple of 8.
To be a multiple of 8, Number 2 must have no remainder when divided by 8.
Number 1 |
Number 2 |
Is Number 2 is a multiple of 8? |
Is the remainder 0? |
20 |
66 - 20 = 46 |
46 ÷ 8 = 5 r 6 |
x |
10 |
66 - 10 = 56 |
56 ÷ 8 = 7 r 0 |
✓ |
Difference between the 2 numbers
= 56 - 10
= 46
Answer(s): 46