Adding Equations
Addition Equations
Standard
6.N.12 Demonstrate an understanding of the inverse relationship of addition and subtraction, and use that understanding to simplify computation and solve problems.
6.P.2 Replace variables with given values and evaluate/simplify, e.g., 2() + 3 when = 4.
6.P.3 Use the properties of equality to solve
problems, e.g., if + 7 = 13, then =
13 – 7, therefore = 6; if 3 x = 15, then 1/3 x 3 x = 1/3 x 15,
therefore = 5.
Cluster
Vocabulary
Variable- A letter or a symbol that represents a number
Objective
To use the inverse to solve an addition equation
Lesson
Use the inverse to solve for the missing number
EX.
x + 4 = 7
Find the inverse of + 4, -4
X + 4 - 4 = 7 - 4
x = 3
Practice
If you need more practice, use the Online Tutorial used with our Text Book
Click on Learn the Lesson
