Being collaborative

There are 308 NRICH Mathematical resources connected to Being collaborative
Subtraction Slip
problem
Favourite

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
Favourite

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
Favourite

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
Favourite

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
Favourite

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
Favourite

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
Favourite

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
Favourite

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
Favourite

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?