Used 9 × 8 = 72 but subtracted only 9 instead of 14 (mis-read the number given away).
PRIMARY 3 · MATHEMATICS
Multiplication Tables
Top 5 mistakes
Ranked by how often they appear across 19 MOE-aligned practice questions in our archive.
Forgot the second step entirely — gave the total 8 × 9 = 72 without subtracting the 14 given away.
Added 14 to 72 instead of subtracting, treating 'gives away' as 'receives more'.
Used only 7 × 6 = 42, ignoring the 9 biscuits per packet. All three numbers are needed: 7 × 6 × 9 = 378.
Multiplied 6 × 9 = 54 biscuits in one bag, but forgot to multiply by the 7 bags. The total is 54 × 7 = 378.
Want to fix these mistakes for your child?
Superholic Lab's quiz engine flags every misconception by name and routes your child to targeted practice in our 3-day Plan Quest. Free 7-day trial.
Start a free 7-day trial →