S.chand class 6 Mathematics Chapter 1 Exercise 1E

 

EXERCISE 1 E

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QUESTION 1

Round off the following to the nearest ten.

(i) 52

Sol :

 

(ii) 17

Sol :

 

(iii) 95

Sol :

 

(iv) 93

Sol :

 

(v) 253

Sol :

 

(vi) 166

Sol :

 

(vii) 892

Sol :

 

(viii) 578

Sol :

 

(ix) 875

Sol :

 

(x) 1593

Sol :

 

(xi) 9799

Sol :

 

(xii) 7932

Sol :

 

QUESTION 2

Round off to the nearest ten, what numbers can be estimated as

(i) 70  [Hint : 65, 66 , 67 , 68 , 69 , 71 , 72 , 73 , 74] 

Sol :

 

(ii) 50

Sol :

 

(iii) 140

Sol :

 

(iv) 980

Sol :

 

(v) 2600

Sol :

 

(vi) 6000

Sol :

 

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QUESTION 3

Round off the following to the nearest hundred.

(i) 563

Sol :

 

(ii) 895

Sol :

 

(iii) 1648

Sol :

 

(iv) 3687

Sol :

 

(v) 8865

Sol :

 

(vi) 38481

Sol :

 

(vii) 7008

Sol :

 

(viii) 80705

Sol :

 

 

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QUESTION 4

Round off to the nearest hundred, what numbers can be estimated as

(i) 700 [Hint : Numbers from 650 to 699 and 701 to 749]

(ii) 800

(iii) 2300

(iv) 7500

(v) 30,000

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QUESTION 5

Round off the following numbers to the nearest thousand.

(i) 4939

Sol :

 

(ii) 6139

Sol :

 

(iii) 5789

Sol :

 

(iv) 9893

Sol :

 

(v) 2235

Sol :

 

(vi) 40386

Sol :

 

(vii) 18589

Sol :

 

(viii) 4,18,500

Sol :

 

(ix) 3,45,376

Sol :

 

(x) 25,65,680

Sol :

 

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QUESTION 6

What numbers will be rounded off to each of the following thousands?|

(i) 11,000

Sol :

 

(ii) 20,000

Sol :

 

(iii) 4,000

Sol :

 

(iv) 68,000

Sol :

 

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QUESTION 7

Give the estimation to the nearest ten, hundred and thousand of the following.

(i) 892

Sol :

 

(ii) 435

Sol :

 

(iii) 9265

Sol :

 

(iv) 7852

Sol :

 

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