3. Leah is working on the multiplication problem 2.43×0.148. Ignoring the ib decimal points, Leah multiplies 243×148 and gets the answer 35964. But Leah can't remember the rule about where to put the decimal point in this answer to get the correct answer to 2.43x0.148. Explain how Leah can use reasoning about the sizes of the numbers to determine where to put the decimal point.

3. Leah is working on the multiplication problem 2.43×0.148. Ignoring the ib decimal points, Leah multiplies 243×148 and gets the answer 35964. But Leah can't remember the rule about where to put the decimal point in this answer to get the correct answer to 2.43x0.148. Explain how Leah can use reasoning about the sizes of the numbers to determine where to put the decimal point.

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter1: Foundations

Section1.9: Properties Of Real Numbers

Problem 824E: Explain how you can multiply 4($5.97) without paper or calculator by thinking of $5.97 as 60.03 then...

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