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12. Maria is working on the multiplication problem 38 x 25. Maria says, 4 times 25 is 100, so 40 times 25 is 1000. Now take away 2, so the answer is 998. Is Maria's method correct or not? If it is correct, write equations that incorporate Maria's work and that show why it's correct. If Maria's reasoning is not correct, work with portions that are right to correct Maria's work, and write a string of equations that corresponds to your corrected method for calculating Write your equations in the following form: 38 x 25= some expressions some expressions

12. Maria is working on the multiplication problem 38 x 25. Maria says, 4 times 25 is 100, so 40 times 25 is 1000. Now take away 2, so the answer is 998. Is Maria's method correct or not? If it is correct, write equations that incorporate Maria's work and that show why it's correct. If Maria's reasoning is not correct, work with portions that are right to correct Maria's work, and write a string of equations that corresponds to your corrected method for calculating Write your equations in the following form: 38 x 25= some expressions some expressions

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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12. Maria is working on the multiplication problem 38 x 25. Maria says, 4 times 25 is 100, so 40 times 25 is 1000. Now take away 2, so the answer is 998. Is Maria's method correct or not? If it is correct, write equations that incorporate Maria's work and that show why it's correct. If Maria's reasoning is not correct, work with portions that are right to correct Maria's work, and write a string of equations that corresponds to your corrected method for calculating Write your equations in the following form: 38 x 25= some expressions some expressions -
Transcribed Image Text:12. Maria is working on the multiplication problem 38 x 25. Maria says, 4 times 25 is 100, so 40 times 25 is 1000. Now take away 2, so the answer is 998. Is Maria's method correct or not? If it is correct, write equations that incorporate Maria's work and that show why it's correct. If Maria's reasoning is not correct, work with portions that are right to correct Maria's work, and write a string of equations that corresponds to your corrected method for calculating Write your equations in the following form: 38 x 25= some expressions some expressions -
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