Let’s go step by step to fill in the divisibility rules for each number: 2, 3, 5, 9, and 10.
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Divisibility Rule for 2:
A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8).
→ Example: 24 → ends in 4 → divisible by 2.
Divisibility Rule for 3:
Add up all the digits of the number. If the sum is divisible by 3, then the whole number is too.
→ Example: 123 → 1 + 2 + 3 = 6 → 6 ÷ 3 = 2 → so 123 is divisible by 3.
Divisibility Rule for 5:
A number is divisible by 5 if it ends in 0 or 5.
→ Example: 75 → ends in 5 → divisible by 5.
Divisibility Rule for 9:
Add up all the digits. If the sum is divisible by 9, then the whole number is too.
→ Example: 189 → 1 + 8 + 9 = 18 → 18 ÷ 9 = 2 → so 189 is divisible by 9.
Divisibility Rule for 10:
A number is divisible by 10 if it ends in 0.
→ Example: 230 → ends in 0 → divisible by 10.
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Now let’s write these clearly in table form as requested:
| Number | Rule |
|--------|----------------------------------------------------------------------|
| 2 | The number ends in 0, 2, 4, 6, or 8. |
| 3 | Add all the digits — if the sum is divisible by 3, so is the number. |
| 5 | The number ends in 0 or 5. |
| 9 | Add all the digits — if the sum is divisible by 9, so is the number. |
| 10 | The number ends in 0. |
✔ All rules are correct and examples match.
Final Answer:
| Number | Rule |
|--------|----------------------------------------------------------------------|
| 2 | The number ends in 0, 2, 4, 6, or 8. |
| 3 | Add all the digits — if the sum is divisible by 3, so is the number. |
| 5 | The number ends in 0 or 5. |
| 9 | Add all the digits — if the sum is divisible by 9, so is the number. |
| 10 | The number ends in 0. |
Parent Tip: Review the logic above to help your child master the concept of rules of divisibility worksheet.
