Estimation
There is no content available!
To Access the full content, Please Purchase

Q1
Rounding off of 730 + 998 is
Marks:1Answer:
1700
Explanation:
As 730 lies between 700 & 800 and 730 is less than 750, therefore it is rounded off to 700.
Similarly 998 lies between 900 & 1000 and 998 is more than 950, therefore it is rounded off to 1000
So, 700 + 1000
= 1700 
Q2
Estimated difference to the nearest hundred of 3257 – 2470 will be
Marks:1Answer:
800.
Explanation:
Look 257 lies between 200 & 300 since 257 is more than 250.
Therefore Rounded to 300. Similarly 470 between 400 & 500 470 is more than 450, therefore rounded to 500
= 3300 – 2500
= 800 
Q3
Rough estimate (by rounding off to nearest tens) of 439 + 334 + 4317 will be
Marks:1Answer:
5090.
Explanation:
Rounding to nearest tens.
439 to 440, 334 to 330, 4317 to 4320
= 440 + 330 + 4320
= 5090 
Q4
Estimation of 19 x 78 is
Marks:1Answer:
1600.
Explanation:
19 will become 20. 78 will become 80. So, 20 x 80 = 1600. 
Q5
Rounding off to nearest hundreds of 87 + 521 is
Marks:1Answer:
600.
Explanation:
87 after rounding off will become 100 and 521 as 500 .So, 500+100 = 600.