Fix My Mistake
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
( 9 + 3) ÷ 3
4
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
9x 4
36
5 x 5 +1 = 30
5 x 5 + 1= 26
What are the symbols to represent multiplication?
x .
12 - 8 ÷ 2 + 3
11
6 x 8 + ( 7 - 6 )
49
8 x 6
48
4 + 5 + 7 - 3 x 2 = 26
4 + 5 + 7 - 3 x 2 = 10
If I have addition and subtraction in my expression, which comes first?
addition
20 ÷ (8-3) + 16
20
(5-3) x 4
8
9 x 8
72
(3x5) + 6
21
Why is it important to know PEMDAS as a mathematician?
So that everyone is solving the problem in the same way
7 + 3 x (8 ÷ 4)
13
2 x ( 9 x 9 + 2) - 8
158
9 x 9
81