Multiple choice

What approximate value should come in place of the question mark (?) in the following question?( (476.25)^2 - (324.23)^2 = ? )

  1. 132600

  2. 131700

  3. 133500

  4. 121600

  5. 123400
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Use difference of squares: a² - b² = (a-b)(a+b). Here: (476.25 - 324.23)(476.25 + 324.23) = (152.02)(800.48) ≈ 152 × 800.5 = 121,676. The closest option is 121600 (Option D). Small variations occur from rounding.

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