Lesson 21 Expressions and equations

Worksheet 1 Think of a number ……

Jean has to solve the equation:    6b + 2 = 11

 

She starts by doing this:     6b + 2  = 9 + 2

Why do you think this helps her?

 

 

 

 

 

Use similar ideas to solve this equation:  4n + 20 = 32

 

 

 

 

 

 

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Thinking Mathematics Lessons Copyright © by Michael Shayer and Mundher Adhami. All Rights Reserved.

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