Multiplication and division

There are 238 NRICH Mathematical resources connected to Multiplication and division
What's in the Box?
problem
Favourite

What's in the box?

Age
7 to 11
Challenge level
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This big box multiplies anything that goes inside it by the same number. If you know the numbers that come out, what multiplication might be going on in the box?

How do you do it?
problem
Favourite

How do you do it?

Age
7 to 11
Challenge level
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This group activity will encourage you to share calculation strategies and to think about which strategy might be the most efficient.

The Amazing Splitting Plant
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The amazing splitting plant

Age
5 to 7
Challenge level
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Can you work out how many flowers there will be on the Amazing Splitting Plant after it has been growing for six weeks?

Number rules - OK
problem
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Number rules - ok

Age
14 to 16
Challenge level
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Can you produce convincing arguments that a selection of statements about numbers are true?
The tomato and the bean
problem
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The tomato and the bean

Age
5 to 7
Challenge level
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At the beginning of May, Tom put his tomato plant outside. On the same day he sowed a bean in another pot. When will the two be the same height?

Lots of Lollies
problem
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Lots of lollies

Age
5 to 7
Challenge level
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Frances and Rishi were given a bag of lollies. They shared them out evenly and had one left over. How many lollies could there have been in the bag?

Growing Garlic
problem
Favourite

Growing garlic

Age
5 to 11
Challenge level
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Ben and his mum are planting garlic. Can you find out how many cloves of garlic they might have had?

Planning a School Trip
problem
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Planning a school trip

Age
7 to 11
Challenge level
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You are organising a school trip and you need to write a letter to parents to let them know about the day. Use the cards to gather all the information you need.
Pumpkin Pie Problem
problem
Favourite

Pumpkin pie problem

Age
7 to 11
Challenge level
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Peter wanted to make two pies for a party. His mother had a recipe for him to use. However, she always made 80 pies at a time. Did Peter have enough ingredients to make two pumpkin pies?

Four goodness sake
problem
Favourite

Four goodness sake

Age
7 to 11
Challenge level
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Use 4 four times with simple operations so that you get the answer 12. Can you make 15, 16 and 17 too?