Instructions

What approximate value should come in place of the question mark (?) in the following questions ?
(NOTE : You are not expected to calculate the exact value.)

Question 138

$$(3.805)^{2} \times 14.018 - 5.991 = ?$$

Solution

Expression : $$(3.805)^{2} \times 14.018 - 5.991 = ?$$

$$\approx (4)^2 \times 14 - 6$$

= $$224 - 6 = 218 \approx 200$$


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