Divided by 100 instead of 1000.
PRIMARY 5 · MATHEMATICS
Decimals
Top 5 mistakes
Ranked by how often they appear across 40 MOE-aligned practice questions in our archive.
Divided by 10000 instead of 1000.
Divided by 10 instead of 1000.
Changed only the unit label without performing either conversion, leaving the number unchanged at 4.85.
Correctly converted to mm (48.5 mm) but then divided by 100 instead of 1 000: 48.5 ÷ 100 = 0.485 m, confusing the mm-to-m factor with the cm-to-m factor.
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