m + 1 = 3
2
x - 3 = 5
8
x - 12 = 2
14
What is the opposite of addition?
What is subtraction?
y + 9 = 10
1
y - 10 = 10
20
b - 4 = 23
27
What is the opposite of multiplication?
What is division?
t + 27 = 21
-6
m - 23 = 123
146
c + 45 = 86
41
True or False
The difference between an expression and an equation is that an expression has an equal sign
What is FALSE?
Equations have equal signs not expressions.
g + 12 = -32
-44
f - 4.5 = 16.25
20.75
b - (-59) = -100
-159
What is the first step when solving equations?
What is to identify the operation being used?
x + (8-2) = 6
0
g - (-23) = 0
-23
g - (-9+7) = 11
9
What is the equation that represents the situation below?
Natalie spends $77 at the store. She received $23 as her change from the cashier. How much did she pay the cashier?
x - 77 = 23
Natalie gave the cashier $100 to receive $23 back.