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Expressions with Variables: Introduction

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Answer the following questions:
For the expressions below, m = 4. Evaluate each expression by substituting the value "4" wherever you see "m."
1. m + 4  4 + 4 = 8   2. 12 - m  12 - 4 = 8  
3. 5m  5 x 4 = 20   4. m ÷ 2  4 ÷ 2 = 2  
5.36 ÷ m  36 ÷ 4 = 9   6. 12 + m  12 + 4 = 16  
7. m - 1  4 - 1 = 3   8. m.6  4 . 6 = 24  
9. 16 - m  16 - 4 = 12      

 

For the expressions below, p = 9. Evaluate each expression by substituting the value "9" wherever you see "p."
10. 21 + p  21 + 9 = 30   11. 32 - p  32 - 9 = 23  
12. 90 ÷ p  90 ÷ 9 = 10   13. 7p  7 x 9 = 63  
14. p + 13  9 + 13 = 22   15. p ÷ 3  9 ÷ 3 = 3  

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Related Resources

The various resources listed below are aligned to the same standard, (6EE02) taken from the CCSM (Common Core Standards For Mathematics) as the Expressions and equationsWorksheet shown above.

Write, read, and evaluate expressions in which letters stand for numbers.