What is the step?
What is the first step:
17 – (4 x 2) + 6
4 x 2
The first step in any math
problem is to solve the...
Parenthesis/Grouping
16 ÷ (1 + 7) =
2
Create a numerical expression for the following problem: Joe bought 5 apples for $2 each and 1 banana for $3. How much money did Joe spend?
(5 x 2) + 3 or (5 x 2) + (3 x 1)
Which step is first in this problem?
24 – 8 x 2 + 8 ÷ 4
8 x 2
Which steps are solved from left to right?
Multiplication & Division and Addition & Subtraction
8 + 6 x 3
26
Create a numerical expression for the following problem: Jerry’s mom is making sleeping bags for their camping trip. She will make 4 sleeping bags that each require 2 yards of fabric. Each yard of fabric will cost $7. How much will she spend on fabric?
(4 x 2) x 7
What is the second step to this problem:
12 - 5 + 2 x 4 ÷ 2
2 x 4
a. 24 - 6 x 2 +(10-4)
b. 24 - 6 x 2 + 6
c. 24 – 12 + 6
d. 24 – 18
e. 6
Where did the student make the first mistake?
Step C
10 ÷ (4 + 1) x 2
4
Create a numerical expression for the following problem: Karri played basketball against his best friend. Karri scored 6 two point shots, and his friend scored 3 three point shots. How many total points were scored in the game?
(6 x 2) + (3 x 3)
What is the third step:
4 + 9 - 6 ÷ 2 x 3
9-9
When do you NOT have to follow the order of operations?
Any time you solve a math problem, you use order of operations.
(19 – 4) x 2 + 7
37
Create a numerical expression for the following problem: Billy makes 2 rows of chairs with 3 in each row. He then takes away 3 and adds 6. How many chairs does he have now?
2 x 3 - 3 + 6