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How to add and subtract mass

Watch the slideshow below and answer the questions about adding and subtracting mass.

Can you work out the total mass of the oranges and apples?

Remember 1000g = 1kg

Image gallerySkip image gallerySlide 1 of 6, A weighing scale with 400g of oranges and a weighing scale with 600g of apples , The mass of the oranges is 400g and the mass of the apples is 600g. The total mass of the oranges and apples is 400g + 600g = 1000g, which is 1kg.
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Activities

Quiz

Practise what you've learnt about adding and subtracting mass with these questions.

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NEW! Play Guardians: Defenders of Mathematica - the Halloween update
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