Unit 5 Review - Intro to Algebra

Carla thinks of a number, triples it, adds 3, and gets 39. What was her original number?

• 12

• 14

• 18

• 21

What's the correct order?

• Multiply 9, Add 1, Multiply 2, Add 4

• Multiply 9, Add 1, Add 4, Multiply 2

• Add 1, Multiply 9, Multiply 2, Add 4

• Add 1, Multiply 9, Add 4, Multiply 2

Damian thought of a number, went through all of the steps, and got 42. What was his original number?

If you start with 3, what number do you end with?

To balance the mobile, what does a hexagon equal?

What number did Luis start with?

To keep the mobile balanced, what step CAN'T you do?

• Remove a hexagon on each side.

• Add 19 + 7

• Add 18 + 7

• Add the 3 hexagons on the right side to get 3h.

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

Tags

CCSS.6.EE.B.7

Solve for b:      $\frac{4b+8}{-2}=10$   

• 3

• -7

• 7

• -3

Tags

CCSS.7.EE.B.4A

Which operation will cancel out multiplication?

• A.  Addition
• B. Subtraction
• C. Multiplication
• D. Division

Tags

CCSS.3.OA.C.7