Fractions and decimals
Let’s Practise
Use a mental strategy to work out: (a) 1.2 + 3.4 (b) 1.41 + 0.34 (c) 5.5 − 2.3 (d) 7.6 − 0.15
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2 Repeat the questions in 1 using a written method. Check your answers are the same.
3 Estimate the answers to these calculations. (a) 3.94 + 3.05 (b) 7.02 + 5.9 (c)
2.52 + 1.89
(d) 10.21 − 4.1
(e) 9.81 − 1.93
(f)
21.19 − 4.23
4 Use a written method to find the exact answers to the questions in 3.
5 Leon adds 13.42 and 22.1. Explain the mistake he has made.
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2
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6 Riana’s car can hold exactly 58.64 litres of petrol.
She puts 23.18 litres into her car, and her tank is now full. How much petrol was in her car before she filled up?
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01/12/2021 14:54
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