Inverse Operations
What is the inverse of addition?
Subtraction
x + 7 = 45
x=38
n - 15 = 8
n=23
6n = 30
n = 5
n/2 = 6
n = 12
What is the inverse of subtraction?
Addition
x + 3 = 104
x = 101
m - 32 = 98
m = 130
8t = 64
t = 8
t/4 = 27
t = 108
What is the inverse of division?
Multiplication
9.8 + e = 78.6
68.8
y - 71.8 = 2.8
y = 74.6
4.5y = 45
y = 10
y/4.5 = 36
y = 162
What is the inverse of Multiplication?
(1/2) + x = (9/2)
x = 8/2
n - (3/4) = (13/4)
n = 16/4
(3/4)n = (9/16)
n = 3/4
t/15 = 5
t = 75
(4/5) + y = (25/10)
x = 17/10
m - (1/2) = (2/3)
15.7b = 188.4
b = 12
m/5.5 = 111.1
m = 20.2