Approximation
Direction: What approximate value should come in place of the question mark(?) in the following question ? (Note that you are not expected to calculate the exact value).
- 26.003 - 154 .001 ÷ 6.995 = ?
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? = 26.003 - 154.001 ÷ 6.995
= 26 - 154 ÷ 7Correct Option: A
? = 26.003 - 154.001 ÷ 6.995
= 26 - 154 ÷ 7 = 26 - 22 = 4
- (9.2)2 = ?
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? = (9.5)2 = 90.25
Correct Option: B
? = (9.5)2 = 90.25 ≈ 90
- 6888.009 - 487.999 - 87.989 =?
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? = 6888.009 - 487.999 - 87.989
∴ ? ≈ 6888 - 488 - 88Correct Option: D
? = 6888.009 - 487.999 - 87.989
∴ ? ≈ 6888 - 488 - 88
⇒ ? ≈ 6888 - 576 ⇒ ? ≈ 6312 ≈ 6310
- 750.0003 ÷ 19.999 = ?
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? = 750.0003 ÷ 19.999
⇒ ? ≈ 750 ÷ 20Correct Option: D
? = 750.0003 ÷ 19.999
⇒ ? ≈ 750 ÷ 20
⇒ ? ≈ 375 ≈ 38
- 19.003 x 22.998 - 280.010
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? = 19.003 x 22.998 - 280.010
≈ 19 x 23 - 280Correct Option: C
? = 19.003 x 22.998 - 280.010
≈ 19 x 23 - 280 ≈ 437 -280
≈ 157 ≈ 160
