Answer:
1300 and 20
Step-by-step explanation:
1. Given expression= 98.5 x 13
where 98.5 is near to 100 by rounding off to the nearest ten.
Therefore the product becomes
98.5 x 13=100 x 13 = 1300.
Thus the estimated value of 98.5 x 13=1300
Estimate or round off a value means to get approximate answer which close to the correct answer. We can estimate or round off to whatever place (hundred, tens, ones, etc) we want .
Given : 102.3 divided by 4.7
We have to estimate 102.3 divided by 4.7
Since, estimation is the roughly calculation and is usually involves rounding to the nearest values so that they are easy to cancel out.
Since, we have to divide,
102.3 divided by 4.7
Rounding 102.7 to nearest tens place , we get, 102. 7 = 100
And Rounding 4.7 to nearest ones place, we get, 4.7 = 5
Thus, when divide 100 by 5 , we get 20.
Thus, 102.3 divided by 4.7 ≈ 20
Thus, The estimate result of 102.3 divided by 4.7 is 20.
Hope this helps!!
