Advanced Mathematics Primary 3 Multiplication Tables

Siti has 7 bags. Each bag contains 6 packets of biscuits. Each packet has 9 biscuits. How many biscuits does Siti have in total?

A 378
B 54
C 63
D 42
Show Worked Solution

Worked Solution

Step 1: Find the number of biscuits in one bag. 6 packets × 9 biscuits per packet = 6 × 9 = 54 biscuits per bag. Step 2: Multiply by the number of bags. 54 × 7 = (50 × 7) + (4 × 7) = 350 + 28 = 378 biscuits in total. Answer: 378. Check: 6 × 9 = 54 ✓; 54 × 7 = 378 ✓

Correct answer: 378

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