Concept explainers
a. I chose an integer. I then subtract
b. Judy wants to do the activity in part (a) with her classmates. Each classmate probably chooses a different number, and Judy wants to tell each classmate quickly what number was chosen. Judy figures out that the only thing she needs to do is to add
c. Come up with your own “trick” similar to the one in part (a).
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Chapter 5 Solutions
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
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