Use the divisibility rules to find multiples of 3 | Maths

Starter quiz

What single number fits into this gap to make this correct? 15 ÷ 3 = ___

5 ✓

4

3
Order the multiples of 3 from the highest to lowest.

1

⇔

36

2

⇔

30

3

⇔

27

4

⇔

21

5

⇔

18
Identify the multiples of 3

6 ✓

8

9 ✓

14

15 ✓
Match the expressions to the products.

3 × 6

⇔

18 ✓

3 × 7

⇔

21 ✓

3 × 9

⇔

27 ✓

3 × 5

⇔

15 ✓

3 × 8

⇔

24 ✓
Andeep has 36 guinea cards and shares them between 3 friends. How many cards does each friend get?

'12 ' ✓
A bakery has baked 270 cupcakes. They are packed into boxes of 3 Which calculations will help to solve this problem?

27 tens ÷ 3 ✓

3 × 9 tens ✓

90 + 90 − 90

270 − 3

Select the multiples of 3

36 ✓

39 ✓

42 ✓

46

49
What is the digit sum for 249?

'15' ✓
Match the numbers to their digit sum.

421

⇔

7 ✓

2,306

⇔

11 ✓

876

⇔

21 ✓

3,511

⇔

10 ✓
Is 3,021 a multiple of 3?

Yes ✓

No
Is 6,413 a multiple of 3?

Yes

No ✓
Is 432 a multiple of 3?

Yes ✓

No

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Numbers that can be divided by 3 and leave no remainder are divisible by 3
To find the digit sum of a number, add the digits in the number together so the digit sum of 17 is 1 + 7 which equals 8
For a number to be divisible by three, the dgit sum of the number must be a divisible by 3

Lack of understanding of key terms such as: 'digit,' 'number.'

Explain clearly the difference between the two key terms and encourage children to test the divisibility rule on both 3 digit and 4 digit numbers.

Digit sum - The sum of the digits of a number is called its digit sum.
Divisible / divisibility - Divisibility is when division of a number results in another whole number. A number is divisible by another if it can be shared exactly with no remainder.
Multiple - A multiple is the result of multiplying a number by another whole number.