Express 58 as a decimal.
- 0.58
- 0.625
- 0.85
- 5.8
Need a hint?
To change a fraction to a decimal, divide the top number by the bottom number. Try 5 ÷ 8 using long division.
Worked answer
- Divide the numerator by the denominator: 5 ÷ 8.
- 8 goes into 50 six times (6 × 8 = 48), remainder 2 → 0.6
- Bring down 0: 8 goes into 20 two times (2 × 8 = 16), remainder 4 → 0.62
- Bring down 0: 8 goes into 40 five times (5 × 8 = 40), remainder 0 → 0.625
- So 58 = 0.625
Answer: 0.625
The mistake this question tests
Habit
Calculation slip
Pupils often write the numerator and denominator as the decimal digits, giving 0.58, instead of actually dividing 5 by 8.
How to fix it at home →Wrong answers children often give:
- 0.58 Calculation slip
- 0.85 Calculation slip
- 5.8 Calculation slip
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See the answer →Practise PSLE fractions until the mistakes stop.
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