Grade 7 · Math · Unit 1 of 14
Divisibility Rules
Quick tests for 2, 3, 4, 5, 6, 8, 9 and 10
What your child practises
Children use the digits of a number to tell whether it divides evenly, and explain why no number can be divided by 0.
New Brunswick Curriculum skill descriptor: Number: Number Sense · divisibility rules and factors
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Can you divide 12 by 0?
- Yes, the answer is 12
- Yes, the answer is 0
- Yes, the answer is 1
- No, dividing by 0 has no answer
No, dividing by 0 has no answer
Hint: Division by 0 is not possible.
Question 2
Which number is divisible by 4?
- 316
- 314
- 318
- 322
316
Hint: A number is divisible by 4 when its last two digits make a number divisible by 4. 16 ÷ 4 = 4.
Question 3
Which number is divisible by 3 but not by 9?
- 126
- 128
- 123
- 135
123
Hint: 1 + 2 + 3 = 6. 6 is divisible by 3 but not by 9.
Question 4
Which number is divisible by 5?
- 232
- 237
- 235
- 239
235
Hint: A number is divisible by 5 when it ends in 0 or 5.
Question 5
Which number is divisible by both 5 and 10?
- 305
- 36
- 365
- 360
360
Hint: A number divisible by 10 ends in 0, and then it is divisible by 5 too.
Question 6
If a number is divisible by 9, it must also be divisible by…
- 2
- 5
- 6
- 3
3
Hint: 9 = 3 × 3, so every multiple of 9 is a multiple of 3. It need not be even or end in 0 or 5.