Level 2 PSLE The sum of two numbers is 98. One of the numbers is a multiple of 10. The other number is a factor of 16. What is the difference between the 2 numbers?
Number 1 + Number 2 = 98
Number 1 is a factor of 16.
Factors of 16: 1, 2, 4, 8, 16
Number 2 is a multiple of 10.
To be a multiple of 10, Number 2 must have no remainder when divided by 10.
Number 1 |
Number 2 |
Is Number 2 is a multiple of 10? |
Is the remainder 0? |
16 |
98 - 16 = 82 |
82 ÷ 10 = 8 r 2 |
x |
8 |
98 - 8 = 90 |
90 ÷ 10 = 9 r 0 |
✓ |
Difference between the 2 numbers
= 90 - 8
= 82
Answer(s): 82