Question

EXERCISE 1.3
1. 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.

2. Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate
(by rounding off to nearest tens):
(a) 439 + 334 + 4,317 (b) 1,08,734 - 47,599 (c) 8325 - 491
(d) 4,89,348 - 48,365
Make four more such examples.

3. Estimate the following products using general rule:
(a) 578 x 161 (b) 5281 x 3491 (c) 1291 x 592 (d) 9250 x 29
Make four more such examples.


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Answer 1

Answer:

question 1

(a)730+998=1728

(b)796- 314=482

(c)12,904+2,888=15,792

(d)28,292- 21,496=6,796

Step-by-step explanation:

I know answers of only question 1