Level 2 PSLE The sum of two numbers is 77. One of the numbers is a multiple of 10. The other number is a factor of 14. What is the difference between the 2 numbers?
Number 1 + Number 2 = 77
Number 1 is a factor of 14.
Factors of 14: 1, 2, 7, 14
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? |
14 |
77 - 14 = 63 |
63 ÷ 10 = 6 r 3 |
x |
7 |
77 - 7 = 70 |
70 ÷ 10 = 7 r 0 |
✓ |
Difference between the 2 numbers
= 70 - 7
= 63
Answer(s): 63