1. Evaluating Expressions
Using Variables to Evaluate Expressions
Rewrite
Substitute
Simplify
Circle

2. 4 Steps to Evaluating Expressions:
Rewrite
Substitute
Simplify
Circle

3. Evaluating Expressions
Evaluate 𝟓𝒏 for 𝒏 = 𝟕 35

4. Evaluating Expressions
Evaluate 𝟓𝒏 for 𝒏 = 𝟕 5𝑛 5(7) 35 35

5. Evaluating Expressions
Evaluate 𝟐𝒑 – 𝟔 for 𝒑 = 𝟏𝟐
24-6 = 18

6. Evaluating Expressions
Evaluate 𝟐𝒑 – 𝟔 for 𝒑 = 𝟏𝟐
2𝑝 – 6
2(12) – 6
24 – 6 18
24-6 = 18

7. Evaluating Expressions
Use 𝒚 = 𝟑 and 𝒙 = 𝟒 to evaluate the expression below. 𝟓𝒙 + 𝟑𝒚
= 29

8. Evaluating Expressions
Evaluate the expression below. Use 𝒚 = 𝟑 and 𝒙 = 𝟒.
𝟓𝒙 + 𝟑𝒚
𝟓(𝟒) + 𝟑(𝟑)
𝟐𝟎 + 𝟗 𝟐𝟗
= 29

9. Evaluating Expressions
Evaluate the following expression, 𝟑𝒎 – 𝟒𝒓. Use 𝒎 = 𝟕 and 𝒓 = 𝟐 to evaluate
21 – 8 = 13

10. Evaluating Expressions
Evaluate the following expression, 𝟑𝒎 – 𝟒𝒓. Use 𝒎 = 𝟕 and 𝒓 = 𝟐 3𝑚 – 4𝑟 3(7) – 4(2) 21 – 8 13
21 – 8 = 13

11. Evaluating Expressions
Evaluate the expression, 𝟒𝒈 – 𝟗 for 𝒈 = 𝟖
32 – 9 = 23

12. Evaluating Expressions
Evaluate the expression, 𝟒𝒈 – 𝟗 for 𝒈 = 𝟖
4𝑔 – 9
4(8) – 9
32 – 9 23
32 – 9 = 23

13. Evaluating Expressions
Use 𝒘 = 𝟏𝟓 to evaluate the expression
𝒘 𝟑 +𝟗
5 + 9 = 14

14. Evaluating Expressions
Use 𝒘 = 𝟏𝟓 to evaluate the expression below.
𝒘 𝟑 +𝟗
𝟏𝟓 𝟑 +𝟗
𝟓+𝟗 14
5 + 9 = 14

15. Evaluating Expressions
Use 𝒂 = 𝟐𝟒 and 𝒃 = 𝟏𝟐 to evaluate the expression below. 𝒂 𝒃 +𝟏𝟑
= 15

16. Evaluating Expressions
Use 𝒂 = 𝟐𝟒 and 𝒃 = 𝟏𝟐 to evaluate the expression below.
𝑎 𝑏 +13
2 + 13 15
= 15

17. Evaluating Expressions
Evaluate the expression 𝟕𝐡 − 𝒅 𝟐 for 𝒉 = 𝟐 and 𝒅 = 𝟒
14 – 2 = 12

18. Evaluating Expressions
Evaluate the expression 7h − 𝑑 2 for ℎ = 2 and 𝑑 = 4 7h− 𝑑 − – 2 12
14 – 2 = 12