Being collaborative

There are 300 NRICH Mathematical resources connected to Being collaborative
Subtraction Slip
problem

Subtraction Slip

Age
5 to 7
Challenge level
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Can you spot the mistake in this video? How would you work out the answer to this calculation?
Compare the Calculations
problem

Compare the Calculations

Age
7 to 11
Challenge level
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Can you put these four calculations into order of difficulty? How did you decide?
Picture Your Method
problem

Picture Your Method

Age
7 to 11
Challenge level
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Can you match these calculation methods to their visual representations?
Fruity Pairs
problem

Fruity Pairs

Age
5 to 7
Challenge level
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Which two items of fruit could Kate and Sam choose? Can you order the prices from lowest to highest?
Countdown fractions
problem

Countdown fractions

Age
11 to 16
Challenge level
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Here is a chance to play a fractions version of the classic Countdown Game.
Less is More
problem

Less is More

Age
7 to 11
Challenge level
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Use your knowledge of place value to try to win this game. How will you maximise your score?
How Many?
problem

How Many?

Age
5 to 11
Challenge level
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Have a look at these photos of different fruit. How many do you see? How did you count?
Digit Addition
problem

Digit Addition

Age
5 to 11
Challenge level
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Try out this number trick. What happens with different starting numbers? What do you notice?
Tables Teaser
problem

Tables Teaser

Age
5 to 7
Challenge level
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How will you work out which numbers have been used to create this multiplication square?