The student multiplied only the units: 6 × 7 = 42, forgetting to multiply the tens digit of 47.
PRIMARY 3 · MATHEMATICS
Multiplication and Division
Top 5 mistakes
Ranked by how often they appear across 41 MOE-aligned practice questions in our archive.
The student added 6 + 47 = 53 instead of multiplying.
The student multiplied 6 × 40 = 240 but forgot to add 6 × 7, ignoring the units digit of 47.
Mis-divided 324 ÷ 4 = 81 by mis-reading the hundreds digit of 364 as 2 instead of 6.
Computed 376 ÷ 4 = 94 by mis-reading the units digit of 364 as 6 instead of 4.
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