Convert 4.08 metres to centimetres.
- 408 cm
- 40.8 cm
- 4080 cm
- 0.0408 cm
Need a hint?
To change metres to centimetres, multiply by 100. Which way does the decimal point move?
Worked answer
- 1 m = 100 cm
- 4.08 m = 4.08 × 100 cm
- = 408 cm
The mistake this question tests
Converting units (kg, ℓ, m, cm³)
Pupils often divide by 100 instead of multiplying, getting 0.0408 cm, because they mix up the direction of conversion.
How to fix it at home →Wrong answers children often give:
- 40.8 cm Converting units (kg, ℓ, m, cm³)
- 0.0408 cm Converting units (kg, ℓ, m, cm³)
- 4080 cm Calculation slip
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See the answer →Practise PSLE measurement until the mistakes stop.
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