Review for 7.EE.1 Quiz

Quiz Review for 7.EE.1Evaluating Expressions

Order of OperationsDistributive Property to Expand and Factor Expressions

Who evaluated this expression correctly?

TimSarah3 X 7 + 21 32 3 X 7 + 21 32 3 X 28 323 X 7 + 21 93 X 28 - 921 + 21 93 X 1942 - 9= 57= 33Who used order of operations correctly?_________________________________________________________2. What error did the other person make?__________________________________________________________________________________________________________________

3 X 7 + 21 32 Parenthesis None

Exponents 3 x 7 + 21 - 9

Multiplication 21 + 21 - 9

Division None

Addition 42 - 9

Subtraction 33

Who evaluated this expression correctly?TimSarah 3 X 7 + 21 32 3 X 7 + 21 32 3 X 28 32 3 X 7 + 21 93 X 28 - 921 + 21 93 X 1942 - 9= 57= 33Who used order of operations correctly? Sarah

2. What error did the other person make?Tim did not follow the correct order of operations. He added first. He did the exponents. Then subtraction and then multiplication.

- 4 (6k + 2) + 5

- 4 (6k + 2) + 5 -4(6K) + -4(2) + 5

- 4 (6k + 2) + 5 -4(6K) + -4(2) + 5= -24k + -8 + 5

- 4 (6k + 2) + 5 -4(6K) + -4(2) + 5= -24k + -8 + 5= -24k + -3

-12x + 12

-12x + 12Factors of -12 and 12 are1, 2, 3, 4, 6, 12

12 will to into both numbers.

-12 ( x 1)