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Metric Measurement Introduction
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Metric Measurement Introduction
A team is preparing equipment for a beach clean-up. Use metric units, conversions and sensible estimates to check their plan. Show working for calculations and include units in your answers.
Choose and convert units
Use mm, cm, m, g, kg, mL or L as appropriate.
1.The team needs to measure the length of a 1.8 m banner. Which unit is most useful for recording its length: millimetres, centimetres or metres? Explain briefly.
2.A trail sign is 85 cm wide. How many millimetres wide is it? Use 1 cm = 10 mm.
3.For the clean-up, the team packs 2 kg of snacks and 750 g of fruit. What is the combined mass in grams?
4.A water container holds 3 L. Volunteers have used 1,250 mL. How much water remains, in millilitres?
Read a measurement plan
The team records the equipment lengths below. Use the table to answer Questions 5 and 6.
Item
Length
Rope
4 m 20 cm
Measuring tape
5 m
Flagging ribbon
380 cm
5.Which is longest: the rope, measuring tape or flagging ribbon? Convert the lengths to the same unit to compare.
6.The rope is 4 m 20 cm long. Write this length in centimetres, then in metres as a decimal.
7.Which is the most sensible estimate for the mass of a full reusable drink bottle: 5 g, 500 g or 5 kg? Give one reason.
- 5 g
- 500 g
- 5 kg
8.The team needs 2.5 L of drinking water. Their jug is marked in millilitres. How many millilitres should they measure?
9.A volunteer walks 1.2 km from the meeting spot to the beach and 850 m back along a different track. What total distance is that in metres?
10.The clean-up plan says a bucket holds 12 mL. Is this likely to be correct for a bucket? Write a more realistic capacity and explain your choice.
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