10

÷2

16

÷3

18

÷4

20

÷5

24

÷9

## Find the division calculations with whole number answers

Divide the number at the top of the column by the number at the left of the row and type the answer in the selected cell only if it is a whole number.

You can click the 'Check' button below to see how well you are doing at any time.

You completed the grid in
.

Check Show Even Numbers Show Multiples of 3 Show Multiples of 4 Show Multiples of 5 Show Multiples of 6 Show Square Numbers Clear Shading

© Transum Mathematics :: This activity can be found online at:
www.transum.org/Maths/Activity/Divide/Exactly.asp?

For Students:

For All:

## Description of Levels

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Level 1 - A five by five division square

Level 2 - A seven by seven division square

Level 3 - An eight by eight division square

Level 4 - An eight by eight division square with rows and columns in a random order

Divisibility Tests - A more challenging exercise.

Delightfully Divisible - Quite a difficult puzzle for the very confident people.

Mental Methods including lesson Starters, visual aids, investigations and self-marking exercises.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

## Curriculum Reference

See the National Curriculum page for links to related online activities and resources.

## Divisibility Tests:

A number is divisible by 2 if its last digit is even (0,2,4,6 or 8)

A number is divisible by 3 if the sum of its digits is divisible by 3.

A number is divisible by 4 if the number's last two digits are divisible by 4.

A number is divisible by 5 if its last digit is a 0 or 5.

A number is divisible by 6 if it is divisible by 2 and 3 (see rules above).

A number is divisible by 7 if 5 times the last digit added to the number made from the other digits is divisible by 7.

A number is divisible by 8 if the last three digits form a number that is divisible 8.

A number is divisible by 9 if the sum of the digits is divisible by 9.

A number is divisible by 10 if its last digit is 0.

A number is divisible by 11 if the alternating sum of its digits is divisible by 11. Alternating sum means a-b+c-d+... – m

A number is divisible by 12 if it is divisible by 3 and 4.

The projectable version of the divisibility tests can be found here: Divisibility Tests 2-12

There is a printable worksheet to go with this activity.

The divisibility test for 7 is thanks to a 12-year old pupil, Chika Ofili, from Westminster School. You can read more about it here.

Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly. You can double-click the 'Check' button to make it float at the bottom of your screen.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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