Question
What approximate value should come in place of question
mark in the following question? 14.9 × 18.1 – 9.9 × 14.8 = ?Solution
Approximate: 14.9 ≈ 15, 18.1 ≈ 18 9.9 ≈ 10, 14.8 ≈ 15 First product: 15 × 18 = 270 Second product: 10 × 15 = 150 Required value ≈ 270 – 150 = 120
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