Question 1(b)

Estimate the following using general rule:
796 – 314

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Solution

We can round off each term to its nearest hundred to make our calculation easy. Then we can get the estimated sum as:

$\begin{matrix} 796 r o u n d o f f t o & = 800 314 r o u n d o f f t o & = 300 E s t i m a t e d d i f f e r e n c e & = 500 \end{matrix}$

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Similar questions

Question 1(b)

Estimate the following using general rule:
796 – 314

Estimate each of the following using general rule:

(a) 730 + 998 (b) 796 − 314 (c) 12, 904 + 2, 888

(d) 28, 292 − 21, 496

Make ten more such examples of addition, subtraction and estimation of their outcome.

Question 1(a)

Estimate the following using general rule:
730 + 998

Question 1(c)

Estimate the following using general rule:
12,904 + 2,888

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