Approximate answer for each of the following calculations also, find t

1.	Approximate answer for each of the following calculations also, find the actual sum 279+395
Answer» Full SiteNavigationEstimating a SumCustom SearchWe will learn the BASIC knowledge for estimating a sum. Here we will learn an easy way to estimate a sum of two numbers by rounding.In CASE of two digit numbers we can only round the NUMBER to the nearest tens place i.e. only one place estimate.For example, let us estimate the following sums:(i) 47 + 32We NEED to round the number to the nearest 10.47 → 5032 → 3050 + 30 = 80(ii) 25 + 34 We need to round the number to the nearest 10.25 → 3034 → 3030 + 30 = 60(iii) 75 + 13We need to round the number to the nearest 10.75 → 8013 → 1080 + 10 = 901. Estimate the sums of 72 and 48Solution:We round the number to the nearest 10.72 → 7048 → 50So, 72 is nearest to 70 and 48 is nearest to 5070 + 50 = 120Thus the estimated sum = 120

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