Question

To calculate 159 – 73, a student writes the fol- DIS lowing equations: or 160 - 70 = 90 - 3 = 87 - 1 = 86 Although the student has a good idea for solv- ing the problem, his equations are not correct. In words, describe the student's solution strategy and discuss why the strategy makes sense; then write a correct sequence of equations that corre- spond to this solution strategy.

Name: to calculate 159 73 a student writes the fol dis lowing equations or 160 70 90 3 87 1 86 although the student has a good idea for solv ing the problem his equations are not correct in words 15393
Uploaded: 2022-10-13T13:21:55-08:00
Duration: 3 min 26 s
Channel: Adi S
Description: to calculate 159 73 a student writes the fol dis lowing equations or 160 70 90 3 87 1 86 although the student has a good idea for solv ing the problem his equations are not correct in words 15393

          To calculate 159 – 73, a student writes the fol- DIS lowing equations: or 160 - 70 = 90 - 3 = 87 - 1 = 86 Although the student has a good idea for solv- ing the problem, his equations are not correct. In words, describe the student's solution strategy and discuss why the strategy makes sense; then write a correct sequence of equations that corre- spond to this solution strategy.

Added by Andrew S.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Adi S

10/13/2022

Step 1

Specifically, the student rounds 159 up to 160 and 73 down to 70, subtracts these rounded numbers (160 - 70), and then tries to correct the difference caused by rounding. Show more…

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To calculate 159 – 73, a student writes the fol- DIS lowing equations: or 160 - 70 = 90 - 3 = 87 - 1 = 86 Although the student has a good idea for solv- ing the problem, his equations are not correct. In words, describe the student's solution strategy and discuss why the strategy makes sense; then write a correct sequence of equations that corre- spond to this solution strategy.