Aisha's ribbon is longer than 0.13 m but shorter than 0.25 m. Which decimal could be its length in metres?
- 0.3
- 0.2
- 0.1
- 0.05
Need a hint?
Write each option to two decimal places, then compare the hundredths.
Worked answer
- 0.3 is too large, while 0.1 and 0.05 are too small.
- 0.2 is greater than 0.13 and smaller than 0.25.
Answer: 0.2 m
The mistake this question tests
Habit
Calculation slip
Choosing 0.1 by treating 0.13 as 0.1 overlooks the hundredths.
How to fix it at home →Wrong answers children often give:
- 0.1 Calculation slip
- 0.3 Calculation slip
- 0.05 Calculation slip
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See the answer →Practise PSLE decimals until the mistakes stop.
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