12 October, 11:32
First use front end rounding to estimate the answer. Then multiply to find the exact answer.
12 October, 12:05
Estimated answer = 57.0
Exact answer = 54.04
Since 19.3 is lesser than 19.5, it will be rounded down to 19.0
Since 2.8 is greater than 2.5, it will be rounded up to 3.0
19.0 * 3.0 = 57.0
19.3 * 2.8 = 54.04
12 October, 12:50
Estimate = 57
Exact = 54.04
We are given two number which we are to estimate by rounding off by front end and then multiply the exact values.
Front end estimate:
19.3 - --> 19
2.8 - --> 3
19 x 3 = 57
19.3 x 2.8 = 54.04
Using front end rounding, we get an estimate of 57 while multiplying the exact numbers we get 54.04.
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» First use front end rounding to estimate the answer. Then multiply to find the exact answer. 19.3 times 2.8