Mathematics

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.

From the question bank

Top 10 mistakes in Money

  1. #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.

    Seen in 1 question

  2. #2Calc error

    This student missed Ahmad's 5-cent coin, counting only 50¢ + 20¢ = 70¢ for Ahmad. Then 70¢ + 70¢ = $1.40.

    Seen in 1 question

  3. #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.

    Seen in 1 question

  4. #4Partial logic

    Counted only the 50-cent and 20-cent coins, forgetting the 10-cent coins.

    Seen in 1 question

  5. #5Calc error

    Computed 1.00 + 0.60 + 0.10 instead of including 5 × 0.10.

    Seen in 1 question

  6. #6Misconception

    Alice has $12.50, which is less than Bob's $15.20. Compare the dollar amounts first — $12 < $15.

    Seen in 1 question

  7. #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.

    Seen in 1 question

  8. #8Misconception

    Charlie has $12.05, the smallest amount. Possibly confused 'most' with 'least'.

    Seen in 1 question

  9. #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.

    Seen in 1 question

  10. #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.

    Seen in 1 question

Free practice

Practise Money by level

Practise every Money question — plus 75,000+ across all PSLE topics — with full worked solutions and misconception-specific feedback on Superholic Lab.

Start Free Trial — 7 Days FreeBrowse all PSLE topics →