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Math Essentials Ms. Palevsky April 21, 2010. 1-step equations with addition Initial Equation (Equation 1) First pair of operations; the operations that.

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Presentation on theme: "Math Essentials Ms. Palevsky April 21, 2010. 1-step equations with addition Initial Equation (Equation 1) First pair of operations; the operations that."— Presentation transcript:

1 Math Essentials Ms. Palevsky April 21, 2010

2 1-step equations with addition Initial Equation (Equation 1) First pair of operations; the operations that produce Equation 2 Equation 2 CHECK: Substitute your answer for x Does 6 + 3 = 9? YES 

3 1-step equations with subtraction Initial Equation (Equation 1) First pair of operations; the operations that produce Equation 2 Equation 2 CHECK: Substitute your answer for p Does 5 - 8 = -3? YES 

4 1-step equations – YOUR TURN Initial Equation (Equation 1) First pair of operations; the operations that produce Equation 2 Equation 2

5 1-step equations Multiplication Initial Equation (Equation 1) First pair of operations; the operations that produce Equation 2 Equation 2 CHECK: Substitute your answer for p Does 4 × 7= 28? YES 

6 1-step equations Division Initial Equation (Equation 1) First pair of operations; the operations that produce Equation 2 Equation 2 CHECK: Substitute your answer for p Does 54/6= 54? YES 

7 1-step equations – YOUR TURN Initial Equation (Equation 1) First pair of operations; the operations that produce Equation 2 Equation 2

8 Discussion: What Patterns do you see? If we had to make a rule for solving equations what would the rule or rules be?

9 2-step equations Example 1 Initial Equation (Equation 1) First pair of operations; the operations that produce Equation 2 Equation 2 CHECK: Substitute your answer for p Does 3 x 8 + 6= 30? YES  Second pair of operations; the operations that produce Equation 3 Equation 3

10 2-step equations Example 2 Initial Equation (Equation 1) First pair of operations; the operations that produce Equation 2 Equation 2 CHECK: Substitute your answer for p Does 14 x 5 -4 = 66? YES  Second pair of operations; the operations that produce Equation 3 Equation 3

11 2-step equations Example 3 YOUR TURN Initial Equation (Equation 1) First pair of operations; the operations that produce Equation 2 Equation 2 CHECK: Substitute your answer for p Does 14 x 5 -4 = 66? YES  Second pair of operations; the operations that produce Equation 3 Equation 3

12 Discussion What more do we know now about 2-step equations? How does this relate to what we already have learned?

13 Practice Try these on your own or with a partner: One-Step 1. x – 9 = 15 2. x + 14 = 8 3. 3z = 39 4. t/2 = 15

14 Practice Try these on your own or with a partner: Two-Step 1. 6x – 3 = 15 2. 4x + 7 = 27 3. m/9 - 2 = 10 4. 7k + 2 = -54


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