Math, asked by brainly1247, 6 months ago

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

Answers

Answered by DivyanshJoshi07
1

Answer:

4 .

(i)

Rough estimate :

400+300+4300

5000

Closer Estimate :

440+330+4310

= 5080

(ii)

Rough estimate :

5700-400

=5300

Closer Estimate:

5670-440

= 5230

(iii) R.E.

8300-500

7800

C.E.

8330-490

7840

(iv)

RE

489400-48400

441000

CE

489350-48370

440980

5 .

(i) 5300+18000

= 23300

(ii) 5700-400

= 5300

(iii) 13800 +2900

= 16700

(iv) 48500-23600

= 24900

6.

(i) 1000×390

= 390000

(ii) 4300+10

= 4310

(iii) 860×490

= 421400

(iv) 1300+10

= 1310

Step-by-step explanation:

Hope it really Helped ..... Thank you

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