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Grade 7 · Math · Unit 1 of 17

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.

Prince Edward Island Curriculum curriculum outcome: Number · divisibility rules for 2, 3, 4, 5, 6, 8, 9 and 10, and why a number cannot be divided by zero

How we explain it

Children can open this short lesson before they practise.

  1. 2: the number is even. 5: it ends in 0 or 5. 10: it ends in 0.
  2. 3: the digits add to a multiple of 3. 9: the digits add to a multiple of 9.
  3. No number can be divided by 0.

Example: Is 7 236 divisible by 9? Add the digits: 7 + 2 + 3 + 6 = 18. 18 is a multiple of 9. Answer: Yes

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. 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

  2. Question 2

    Which number is divisible by 4?

    • 316
    • 314
    • 318
    • 322

  3. Question 3

    Which number is divisible by 3 but not by 9?

    • 126
    • 128
    • 123
    • 135

  4. Question 4

    Which number is divisible by 5?

    • 232
    • 237
    • 235
    • 239

  5. Question 5

    Which number is divisible by both 5 and 10?

    • 305
    • 36
    • 365
    • 360

  6. Question 6

    If a number is divisible by 9, it must also be divisible by…

    • 2
    • 5
    • 6
    • 3

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