Answer:

Explanation:
Given : Expression

To find : Estimate each product ?
Solution:
Estimating is to rounding to the nearest whole number.
Estimating 28.21 to whole number is by rounding ones.
As 2<5 it round to zero and ones place remain same.
So,

Estimating 8.02 to whole number is by rounding ones.
As 0<5 it round to zero and ones place remain same.
So,

Now,

