4 × 7 = 28, which is not 36. You may have recalled the wrong multiplication fact. Check: 4 × 9 = 36, so 36 ÷ 4 = 9.
PRIMARY 2 · MATHEMATICS
Multiplication and Division
Top 5 mistakes
Ranked by how often they appear across 9 MOE-aligned practice questions in our archive.
4 × 8 = 32, which is 4 short of 36. You found a close multiple but stopped one step too early. 4 × 9 = 36, so the answer is 9.
36 ÷ 3 = 12, but the question divides by 4, not 3. Make sure you use the correct divisor. 36 ÷ 4 = 9.
You added 6 + 4 + 5 = 15 instead of multiplying. When each level (boxes / packets / biscuits) groups items inside the next level, we multiply.
You found the number of PACKETS (6 boxes × 4 packets = 24) but did not multiply by the 5 biscuits in each packet.
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