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Key words for rounding and estimating. Unit 1.6. Sample Problem. 197 – 50 = 147. Rounding. To write a number to a given amount of accuracy. Rounding 197 to the nearest 100 would be 200. 197 – 50 = 147. 200. Estimate.
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Sample Problem 197 – 50 = 147
Rounding To write a number to a given amount of accuracy.Rounding 197 to the nearest 100 would be 200 197 – 50 = 147 200
Estimate To give a rough answer that may be a little less or a little more than the actual result. To estimate 197 – 50 you may instead work out 200 – 50 to give an estimate of 150. 197 – 50 = 147 200 - 50= 150