Multiplication and division

There are 238 NRICH Mathematical resources connected to Multiplication and division

problem

Favourite

Same answer

Age

11 to 14

Challenge level

Aisha's division and subtraction calculations both gave the same answer! Can you find some more examples?

problem

Favourite

Always, sometimes or never?

Age

5 to 11

Challenge level

Are these statements relating to odd and even numbers always true, sometimes true or never true?

problem

Skeleton

Age

11 to 14

Challenge level

Amazing as it may seem the three fives remaining in the following `skeleton' are sufficient to reconstruct the entire long division sum.

problem

6 by 6 mathdokus

Age

7 to 16

Challenge level

Can you use the clues to complete these 6 by 6 Mathematical Sudokus?

problem

3 by 3 mathdokus

Age

7 to 14

Challenge level

Can you use the clues to complete these 3 by 3 Mathematical Sudokus?

problem

Mathdoku

Age

7 to 11

Challenge level

Complete the Mathdoku grid using the clues. Can you convince us that the number you have chosen for each square has to be correct?

problem

Napier's bones

Age

7 to 11

Challenge level

The Scot, John Napier, invented these strips about 400 years ago to help calculate multiplication and division. Can you work out how to use Napier's bones to find the answer to these multiplications?

game

Sumo

A number game requiring a strategy.

problem

Charitable pennies

Age

7 to 14

Challenge level

Investigate the different ways that fifteen schools could have given money in a charity fundraiser.

problem

Surprising split

Age

7 to 11

Challenge level

Does this 'trick' for calculating multiples of 11 always work? Why or why not?

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For younger learners

Multiplication and division

Same answer

Always, sometimes or never?

Skeleton

6 by 6 mathdokus

3 by 3 mathdokus

Mathdoku

Napier's bones

Sumo

Charitable pennies

Surprising split