Level 2 PSLE The sum of two numbers is 70. One of the numbers is a multiple of 9. The other number is a factor of 35. What is the difference between the 2 numbers?
Number 1 + Number 2 = 70
Number 1 is a factor of 35.
Factors of 35: 1, 5, 7, 35
Number 2 is a multiple of 9.
To be a multiple of 9, Number 2 must have no remainder when divided by 9.
Number 1 |
Number 2 |
Is Number 2 is a multiple of 9? |
Is the remainder 0? |
35 |
70 - 35 = 35 |
35 ÷ 9 = 3 r 8 |
x |
7 |
70 - 7 = 63 |
63 ÷ 9 = 7 r 0 |
✓ |
Difference between the 2 numbers
= 63 - 7
= 56
Answer(s): 56