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Mass Measurement and Conversion

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Mass Measurement and Conversion

A community team is preparing a supply crate for a trip around Aotearoa New Zealand. Convert carefully between grams (g) and kilograms (kg), then check whether the crate stays under its 5 kg limit. Show working where useful.

Choose and convert units

Remember: 1 kg = 1,000 g. Use a sensible unit for each object, then complete the conversions.

1.Which is the most sensible unit for the mass of one apple: grams or kilograms? Explain briefly why.
2.Convert 2.35 kg to grams.
3.Convert 680 g to kilograms.
4.A bag of rice has a mass of 1.5 kg. Which is the same mass?
  • 150 g
  • 1,050 g
  • 1,500 g
  • 15,000 g

Pack the crate

The crate limit is 5 kg. The team has selected these supplies: rice, 1.25 kg; first-aid kit, 840 g; apples, 0.9 kg; towel, 375 g. Use the list to solve the packing problems.

5.Write the first-aid kit's mass in kilograms and the towel's mass in kilograms.
6.Calculate the total mass of all four supplies in kilograms. Show how you converted and added the masses.
7.How much mass capacity remains before the crate reaches its 5 kg limit? Give your answer in grams.
8.A water bottle weighs 750 g. If it is added to the crate, will the crate stay under the 5 kg limit? State the new total mass in kilograms and justify your answer.

Check your mass sense

Use the context and your understanding of units to finish the final checks.

9.True or false: 0.4 kg is the same mass as 400 g.
TrueFalse
10.Put these masses in order from lightest to heaviest: 920 g, 1.02 kg, 0.95 kg. Write each value with its unit.
0.90.9511.05

2 printable pages

  • Mass Measurement and Conversion, page 1 of 2: Choose and convert units, Pack the crate

    Page 1

  • Mass Measurement and Conversion, page 2 of 2: Check your mass sense

    Page 2

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