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What comes first in the order of operations?
Parenthesis
What needs to be done first in this expression: (3 x 4) + 2²
3 x 4
What is the second step in solving this expression? 4 x 2 + 8
8 + 8
Solve: (17 + 9) - 2² x 5
6
John says that 6 + 12 x (20 ÷ 10)= 36. Is he correct? If he is wrong, describe his error.
The correct answer is 30. He added first, then divided, and then multiplied which does not follow order of operations.
What is it called when a number is raised to the second power?
Squared
What is it called when a number is raised to the third power?
Cubed
Solve: 3³ + (10 ÷ 2)
32
(64 – 16) ÷ 2= ____
24
7² x (15-12)=
147
Describe the error. What is the correct answer?
This person did 3 x 3 instead of 3 x 3 x 3. The correct answer is 162.
Does multiplication always come first? Why or why not.
No, you go from left to right with multiplication and division.
Name the order of operations in order.
parenthesis, exponent, multiplication/division, addition/subtraction
12 / 3 x 2 =
8
7 + 2 x 4 - 3
12
12 / 6 x 3 +9
15
