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subtracting decimals. Estimation and Computation. teacher notes. There is a worksheet to match this slideshow. This slideshow includes 10 problems from the worksheet. Student whiteboards would also work for this activity. FOR EACH PROBLEM: Have students estimate & record the difference.
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subtracting decimals Estimation and Computation
teacher notes There is a worksheet to match this slideshow. This slideshow includes 10 problems from the worksheet. Student whiteboards would also work for this activity. FOR EACH PROBLEM: Have students estimate & record the difference. Have them solve the problem. Click to see the solution to the problem so that students can check their estimate.
76.84 - 21.288 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50
82.657 - 73.878 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50
55.421 - 52.631 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50
58.1 - 14.453 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50
73.726 - 8.925 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50
69.215 - 51.355 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50
93.817 - 55.311 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50
94.497 - 37.831 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50
88.519 - 0.523 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50
69.353- 44.833 Give a Reasonable Estimate • Less than 20 • Between 20 and 30 • Between 31 and 50 • More than 50