Level 2 PSLE The sum of two numbers is 45. One of the numbers is a multiple of 8. The other number is a factor of 25. What is the difference between the 2 numbers?
Number 1 + Number 2 = 45
Number 1 is a factor of 25.
Factors of 25: 1, 5, 25
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? |
25 |
45 - 25 = 20 |
20 ÷ 8 = 2 r 4 |
x |
5 |
45 - 5 = 40 |
40 ÷ 8 = 5 r 0 |
✓ |
Difference between the 2 numbers
= 40 - 5
= 35
Answer(s): 35