Equations Real World #3 Real World #2 Subtraction Equations!! Subtraction Property

of Equality!! check your understanding Example 1 Solve and Write Addition and Subtraction Equations 8 = x + 3 Before we begin Let's Review

Inverse Operations! Inverse Operations undo each other.

For example:

1. To Solve addition equations use Subtraction.

2. To Solve subtraction equations use

Addition! music Ariana and Jasmine have 245 downloaded songs. If

Ariana has132, how many belong to Jasmine?Write and solve an equation tofind how many songs belongto Jasmine? A male gorilla weighs 379 pounds on average. This is 181 pounds more than the weight of the average female gorilla. Write and solve an addition equation to find the weight of an average female gorilla. Animals Addition Equation!! EXAMPLE #1 X - 2 = 3 Real World Michael's height is 4 inches less

than Sandra's height. Michael is

58 inches tall. Write and solve a

subtraction equation to find

Sandra's height. You Try! Addition: 1. y + 7 = 10

2. x + 5 = 11

3. 9 = 2 + x

4. 7 = 4 + y

5. 7+ a = 9

Subtraction: 1. c - 1 = 8

2. f -1 = 5

3. 2 = e -1

4. 1 = g - 3

5. r - 3 = 1 Answers:

1) 3, 2) 6, 3) 7, 4) 7, 5) 2 Answers: 1) 9, 2) 6, 3) 3 4) 4 5) 4

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# Solve and Write Addition and Subtraction Equations

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