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a. Think of a number.
Add
Double the result.
Subtract
Double the result.
Add
Divide by
Subtract
Your answer will be your original number. Explain how this “trick” works.
b. Fill in two more steps that will take you back to your original number.
Think of a number.
Add
Multiply by
Subtract
.
.
.
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Chapter 8 Solutions
A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
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