Question

4. Give a rough estimate (by rounding off to
nearest hundreds) and also a closer
estimate (by rounding off to nearest tens):

(i) 439 + 334 + 4317 (ii) 108734 - 47599
(iii) 8325 - 491
(iv) 489348 - 48365

5. Find the estimated sum and difference of
the following:

(i) 5290 + 17986 (ii) 5673 - 436
(iii) 13805 + 2868 (iv) 48457 - 23624

6. Find the estimated products and quotients
of the following:

(1) 958 X 387 (0) 4295 + 7
(iii) 858 * 487 (iv) 1254 + 10
​​

Answer 1

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