Question - Effective Estimation Strategy for Finding the Sum of Two Lengths of Ribbon
Solution:
The image contains a question that asks for an effective estimation strategy for finding the sum of two lengths of ribbon, which are 47.6 inches and 39.75 inches. The options given are:A. Round 39.75 to 30 and 47.6 to 40, then add.B. Round 39.75 to 40 and 47.6 to 48, then add.C. Add 47.6 and 39.75, then round the answer.D. Subtract 39.75 from 47.6, then round the answer.The correct estimation strategy to find the sum would be:B. Round 39.75 to 40 and 47.6 to 48, then add.This is because rounding to the nearest whole number that is easy to add will give you a good estimation of the sum. Rounding 39.75 to 40 and 47.6 to 48 and then adding them together gives 40 + 48 = 88, which is a close estimate of the actual sum.
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