What is the 6 letter expression that tells us the order of operations?
PEMDAS
What operation would you do first?
6 + 2 - 5
6 + 2
4 - 2 + 6 =
2 + 6
8
(5 + 5) • 3
10 • 3
30
42
4 • 4
16What does the A mean in PEMDAS?
Add
What operation would you do first?
25 ÷ 5 x 2
25 ÷ 5
5 • 4 ÷ 2 =
20 ÷ 2
10
(5 - 4) + (10 • 2)
1 + 20
21
62 + 4
6 • 6 + 4
36 + 4
40
What are the 3 grouping symbols?
Parenthesis ( )
Brackets [ ]
Braces { }
What operation would you do first?
18 + 3 • 2
3 • 2
10 ÷ 2 + 4 =
5 + 4
9
15 - (3 + 4) • 2
15 - 7 • 2
15 - 14
1
52 + (4 • 3)
52 + 12
5 • 5 + 12
25 + 12
37
What does the E mean in PEMDAS?
Exponent
Which operation would you do first?
4 • 3 + 52
52
20 - 5 • 2 ÷ 5 =
20 - 10 ÷ 5
20 - 2
18
5(4 + 2) - 6
5(6) - 6
30 - 6
24
100 - 22(9 - 6) ÷ 2
100 - 22(3) ÷ 2
100 - 4(3) ÷ 2
100 - 12 ÷ 2
100 - 6
104
What operation should you perform when you have a number next to parenthesis?
Example: 3(2+1)
Multiplication
Which operation would you do first?
24 • (7 + 4)
(7 + 4)
10 + 8 ÷ 4 • 3 - 4
10 + 2 • 3 - 4
10 + 6 - 4
16 - 4
12
5(2 + 8)(20 ÷ 4)(2)
5(10)(20 ÷ 4)(2)
5 • 10 • 5 • 2
50 • 10
500
(33 + 3) - (23 ÷ 4)
(27 + 3) - (23 ÷ 4)
30 - (8 ÷ 4)
30 - 2
28