9 - 3 x 2 = 12
9 -3 x 2 = 3
Give the correct order of operations.
Parenthesis, Exponents (still correct if step not included), Multiplication/Division, Addition/Subtraction
3 + 6 x 4
27
(14 + 6) x (12 -4) -9
151
l x w x h
length x width x height
10÷5 x 2 = 1
10÷5 x 2 = 4
What is the saying we use to remember the correct Order of Operations?
Please Excuse My Dear Aunt Sally
or
Pass My Dad A Sandwich
25 ÷ 5 -2
3
(15 - 5) x 10 + 3
103
What method do we use for dividing 2 digit by 3 digit numbers?
Partial Quotient
The Big 7
5 x 5 +1 = 30
5 x 5 + 1= 26
( 10 + 19 -5 ) x 2
What operation should you do first?
10 + 9 in the parentheses
12 - 8 ÷ 2 + 3
11
6 x 8 + ( 7 - 6 )
49
What is the inverse (opposite) operation of division?
4 + 5 + 7 - 3 x 2 = 26
4 + 5 + 7 - 3 x 2 = 10
left to right
20 ÷ (8-3) + 16
20
( 10 + 19 -5 ) x 2
48
Multiplication
20 - 5 x 2 + 3 = 33
13
(14 + 6) x (12 -4) -9
What operation should you do first and why?
Hint: 2 reasons
14 + 6 because it is in parentheses and it is first from left to right
7 + 3 x (8 ÷ 4)
13
2 x ( 9 x 9 + 2) - 8
158
Division