General
What is the opposite operation of addition?
Subtraction
n - 1 = 5
n = 6
h + 2 = 6
h = 4
10 = g + 2
g = 8
4 = y +2
y = 2
What is the opposite operation of subtraction?
Addition
10 - 4 = n - 3
n = 9
h + 6 = 14 - 4
h = 4
g - 7 = 8 - 1
g = 0
13 + 7 = y + 4
What is the opposite operation of multiplication?
Division
6n = 18
n = 3
81 = 9h
h = 9
4g = 12
g = 3
100 = 20y
y = 5
What is the opposite operation of division?
Multiplication
10n + 12 = 112
n = 10
10 = 3h - 17
h = 9
4g - 3 = 5
g = 2
3 + 7y = 24
y = 3
What does BEDMAS stand for?
brackets, exponents, division, multiplication, addition, subtraction
n/2 = 4
n = 8
5 = h/4
h = 20
g/7 = 8
g = 56
y/8 = 8
y = 64