Unit 16 – More on measures
Use estimates to find three objects in the classroom with masses less than 1 kg. Weigh each object. (a) Compare and then order their masses from lightest to heaviest. (b) Calculate how many more grams your heaviest object is than your lightest object. Solve these problems. (a) A bag of sand has a mass of 8 kg. What is the mass of 1 _ 4 of the bag? (b) A pair of walking boots has a mass of 2 kg 600 g. What is the mass of one of the boots? (c) 4 pens are the same mass as 10 pencil sharpeners.
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One pencil sharpener is 10 g. What is the mass of one pen?
E
The mass of a 10 cent coin is approximately 3 grams. Work out how much money each of the children have.
1 kg
Make up another problem about the mass of 10 cent coins. Swap with a partner.
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