Multiple choice

\text{What approximate value should come in place of question mark (?) in the following questions?}\\sqrt{3970} \div 2.998 + 5.098 \times 268.99 + 433.908 =?

  1. 1800

  2. 2000

  3. 1700

  4. 2100

  5. 2400
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Approximate: √3970 ≈ √3969 = 63 (since 63² = 3969). Then: 63 ÷ 2.998 ≈ 63 ÷ 3 = 21. Next: 5.098 × 268.99 ≈ 5 × 269 = 1345. Finally: 21 + 1345 + 433.908 ≈ 21 + 1345 + 434 = 1800. Option A is correct. The strategy is to round each term to numbers that are easy to work with while maintaining accuracy.

Keep practicing — related questions