Multiple choice

\text{What approximate value will come in place of question mark (?) in the following questions.} \ \text{8724.997 × 3.987 ÷ 16.009 = ? + 821.44}

  1. 1250

  2. 1190

  3. 1450

  4. 1200

  5. 1360
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Approximate: 8725 × 4 = 34,900. Then 34,900 ÷ 16 = 2,181.25. So 2,181.25 = ? + 821.44. Therefore ? = 2,181.25 - 821.44 ≈ 1,359.81 ≈ 1,360. The key is using approximations (8725 instead of 8724.997, 4 instead of 3.987, 16 instead of 16.009) to simplify mental calculation.

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