Mass and weight

There are 24 NRICH Mathematical resources connected to Mass and weight
Seesaw Shenanigans
problem
Favourite

Seesaw shenanigans

Age
3 to 7
Challenge level
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A group of animals has made a seesaw in the woods. How can you make the seesaw balance?

Order, Order!
problem
Favourite

Order, order!

Age
5 to 11
Challenge level
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Can you place these quantities in order from smallest to largest?

Discuss and Choose
problem
Favourite

Discuss and choose

Age
5 to 11
Challenge level
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This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research.

All in a jumble
problem
Favourite

All in a jumble

Age
11 to 14
Challenge level
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My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.
Place your orders
problem
Favourite

Place your orders

Age
11 to 14
Challenge level
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Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?
Finding Out!
problem

Finding out!

Age
7 to 11
Challenge level
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Explore all aspects of measurement in this activity.
Watermelons
problem

Watermelons

Age
7 to 11
Challenge level
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These watermelons have been entered into a competition. Use the information to work out the number of points each one was awarded.
What's My Weight?
problem

What's my weight?

Age
7 to 11
Challenge level
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There are four equal weights on one side of the scale and an apple on the other side. What can you say that is true about the apple and the weights from the picture?
Pies
problem

Pies

Age
7 to 11
Challenge level
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Grandma found her pie balanced on the scale with two weights and a quarter of a pie. So how heavy was each pie?
Oranges and Lemons
problem

Oranges and lemons

Age
7 to 11
Challenge level
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On the table there is a pile of oranges and lemons that weighs exactly one kilogram. Using the information, can you work out how many lemons there are?