Measurement: Units & Conversion: Hard Test 8

15 questions · 15 minutes

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A recipe for 4 people uses 250 ml of milk and 300 g of flour. How much of each is needed for 10 people?
A machine makes 45 items every minute. How many items does it make in 1 hour 20 minutes?
Apples cost £2.40 for each kilogram. Ravi buys 1.75 kg and pays with a £10 note. How much change does he get?
A late-night shop is open from 22:15 until 06:45 the next morning. For how long is it open?
A box has a mass of 350 g when empty. It is filled with 18 jars, each weighing 245 g. What is the total mass in kilograms?

Ask whether your answer should be a bigger or smaller number before you convert. Going to a smaller unit always gives a bigger number.
Convert everything to the same unit before comparing or adding. Adding 250 g to 1.2 kg without converting is the classic error.