Money
The most common mistakes Singapore primary students make in Money, distilled from 123+ MOE-aligned questions across P1, P2, P3, P4, P5. Free practice at every level.
Top 10 mistakes in Money
- #1Calc error
This student counted Ahmad's coins as only the 50-cent and 5-cent coins (50¢ + 5¢ = 55¢), missing the 20-cent coin. Then 55¢ + 70¢ = $1.25.
- #2Calc error
This student missed Ahmad's 5-cent coin, counting only 50¢ + 20¢ = 70¢ for Ahmad. Then 70¢ + 70¢ = $1.40.
- #3Calc error
This student counted Siti's 2 ten-cent coins as 3 ten-cent coins (50¢ + 30¢ = 80¢ for Siti). Then 75¢ + 80¢ = $1.55.
- #4Partial logic
Counted only the 50-cent and 20-cent coins, forgetting the 10-cent coins.
- #5Calc error
Computed 1.00 + 0.60 + 0.10 instead of including 5 × 0.10.
- #6Misconception
Alice has $12.50, which is less than Bob's $15.20. Compare the dollar amounts first — $12 < $15.
- #7Partial logic
David has $15.02, which is close to Bob's $15.20 in dollars. Compare the cents: 20¢ > 02¢, so Bob has more.
- #8Misconception
Charlie has $12.05, the smallest amount. Possibly confused 'most' with 'least'.
- #9Partial logic
Correctly calculated the fifty-cent coins ($1.50) but took only one twenty-cent coin ($0.20) and ignored the two ten-cent coins altogether, giving $1.50 + $0.20 = $1.70.
- #10Calc error
Counted only 3 twenty-cent coins instead of 4, giving 3 × $0.20 = $0.60 instead of $0.80. Then added $1.50 + $0.60 + $0.20 = $2.30. Made an off-by-one error when counting the twenty-cent coins.
Practise Money by level
- Primary 111 questions
- Primary 245 questions
- Primary 337 questions
- Primary 415 questions
- Primary 515 questions
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