Question

10. Estimate the following by rounding off each number
to its greatest place.
(i) 483 + 324 + 6219 (ii) 6213 + 9153 - 2163
(iii) 60123 - 42155 + 4312
(iv) 928 x 417
(v) 621 x 597​

Answer 1

Answer:

1. 483+324+6219

= 500+300+6000

= 800+6000

= 6800

2. 6213+9153-2163

= 6000+9000-2000

= 15000-2000

= 13000

3. 60000-40000+4000

= 60000-44000

= 16000

4. 900×400

= 360000

5. 600×600

= 360000

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