Order of Operations
What is the acronym to follow to complete order of operations?
PEMDAS (Please Excuse My Dear Aunt Sally)
Y = 3 + 6
9
2/10 + 2/10 =
4/10
Any whole positive or negative number
20 + 12 =
32
Which operation do you do first? 8-3 x 4+5
Multiplication
Y + 2 = 10
8
3/6 - 2/6 =
1/6
3 + -2 =
1
5
5+13-2
16
X + 2 = -1
-3
Change 5 1/4 into a proper fraction
21/4
-8 - 15 =
-23
(5) x (-5) =
-25
8-3 x 2+7
9
3x = 21
3
2/5 + 2/10 =
6/10
-10 + 8 =
-2
-24 - 6 =
14 + 3(7-2)- 2 x 5
19
5x + 4 = 24
x = 4
Change 2/10 into a decimal
.2
Princeton gained 5 yards. The lost 3 yards. How many yards did they make?
2 yards
Area of rectangle with a length of 5 cm and a width of 2 cm
10 cm squared