HOTS Mathematics Primary 5 Whole Numbers

Amir calculates scores for a National Day activity using: (5 + 3) × (12 − 4) − 2 × (6 + 1). What is his final score?

A 50
B 23
C 51
D 2
Show Worked Solution

Worked Solution

Step 1: Evaluate the first two brackets. (5 + 3) = 8 (12 − 4) = 8 Step 2: Multiply. 8 × 8 = 64 Step 3: Evaluate the third bracket. (6 + 1) = 7 Step 4: Multiply by 2. 2 × 7 = 14 Step 5: Subtract. 64 − 14 = 50

Correct answer: 50

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