Estimate the following numbers to nearest tens and then add or subtract.

Sum

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Chapter 2: Numbers - Exercise 2.4 [Page 12]

Chapter 2 Numbers
Exercise 2.4 | Q 3 | Page 12

By how much is 5643879 smaller than one crore?

Estimate each sum to the nearest ten: (57 + 34)

Estimate each sum to the nearest ten: (463 + 182)

Estimate each sum to the nearest hundred: (236 + 689)

Estimate each sum to the nearest hundred: (3280 + 4395)

Estimate each difference to the nearest thousand: (47005 − 39488)

Estimate the following numbers to nearest tens and then add or subtract.

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

1,08,734 - 47,599

Estimate the following using the general rules:

330 + 280

Estimate the following using the general rules:

5440 - 2972