Estimatethe sum or difference by roundin...

Estimatethe sum or difference by rounding off the numbers to their greatest place.
a. `267-45` b. `54, 876-37,456` c. `66,239+576`

A

a.`2,500`
b.`1,800`
c.`66,600`

B

a.`450`
b.`16,000`
c.`66,600 `

C

a.`290`
b.`1,86,700`
c.`66,600 `

D

a.`250`
b.`18,000`
c.`66,600 `

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The correct Answer is:

D

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