Solving One Step Addition and Subtraction Equations

Front

What is the inverse operation of adding (+)?

Back

Subtracting (-) is the inverse operation of adding.

Front

Write and solve the equation: Jeremy spent $7 on a sandwich and a drink. If he spent $1.75 on his drink, how much did his sandwich cost?

Back

s + 1.75 = 7 ; s = 5.25

Front

What is the inverse operation of subtracting (-)?

Back

Adding (+) is the inverse operation of subtracting.

Front

Solve for w: w + 27 = 58

Back

w = 31

Front

Solve for x: x + 9 = 38

Back

x = 29

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is a variable in mathematics?

Back

A variable is a symbol used to represent an unknown value.

Front

If a + b = c, what is the value of a if b = 3 and c = 10?

Back

a = 10 - 3 ; a = 7

Front

What is the first step in solving the equation x - 5 = 10?

Back

Add 5 to both sides of the equation.