# Algebra Magic - Using Math To Prove Algebra Magic ?· Algebra Magic - Using Math To Prove Algebra Magic…

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• Georgia Department of Education Georgia Standards of Excellence Framework

GSE Grade 7 Unit 2

Mathematics GSE Grade 7 Unit 2: Expressions and Equations Richard Woods, State School Superintendent

Algebra Magic - Using Math To Prove Algebra Magic Tricks

In the space provided, follow your teachers instructions for the first math trick. What did you get as a result? How does this compare to your classmates answers? For each magic trick below, work through the trick with numbers. Then, write an expression and rewrite it to demonstrate the operation being performed in the trick. Trick #1 Steps to Trick Numerical Expression Equivalent

Double the number

Subtract 5

Half the number

Trick #2 Steps to Trick Numerical Expression Equivalent Expression Start with a number

Double the Result

Subtract 20

Subtract your original number

• Georgia Department of Education Georgia Standards of Excellence Framework

GSE Grade 7 Unit 2

Mathematics GSE Grade 7 Unit 2: Expressions and Equations Richard Woods, State School Superintendent

Trick #3 Steps to Trick Numerical Expression Equivalent Expression Start with a number. It must be a fraction.

Triple the number

Subtract twice the number