Question
The value of 15 ÷ 3 of 2 × 2 + 9 ÷ 18 of 2 × 4 – 4
÷ 8 × 2 is:Solution
= 15 ÷ (3 × 2) × 2 + 9 ÷ (18 × 2) × 4 – 4 ÷ 8 × 2
= 15 ÷ 6 × 2 + 9 ÷ 36 × 4 – 4 ÷ 8 × 2
= 2.5 × 2 + 0.25 × 4 – 0.5 × 2
= 5 + 1 – 1 = 5
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