Level 2 PSLE The sum of two numbers is 67. One of the numbers is a multiple of 6. The other number is a factor of 21. What is the difference between the 2 numbers?
Number 1 + Number 2 = 67
Number 1 is a factor of 21.
Factors of 21: 1, 3, 7, 21
Number 2 is a multiple of 6.
To be a multiple of 6, Number 2 must have no remainder when divided by 6.
Number 1 |
Number 2 |
Is Number 2 is a multiple of 6? |
Is the remainder 0? |
21 |
67 - 21 = 46 |
46 ÷ 6 = 7 r 4 |
x |
7 |
67 - 7 = 60 |
60 ÷ 6 = 10 r 0 |
✓ |
Difference between the 2 numbers
= 60 - 7
= 53
Answer(s): 53