Multiple choice

What approximate value should come in place of question mark (?) in the given equation? 1989 + 249 - 1998 = ?

  1. 2500

  2. 2250

  3. 500

  4. 240
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D Correct answer
Explanation

1989 + 249 - 1998 = 2238 - 1998 = 240.

AI explanation

By rounding the given numbers to the nearest tens to quickly estimate the result, the expression approximates to 1990 + 250 - 2000. Adding the first two numbers gives 2240, and subtracting 2000 from 2240 leaves an approximate value of 240.

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