Math 7 Checkpoint #1 Review

Zephaniah purchased a laptop that was on sale for 25% off.  The original price was $960.  What is the total amount Zephaniah saved?

• $935

• $240

• $150

• $720

Answer explanation

This question is asking for the discount amount.

Calculate only the discount which is the percent of the original price.

This is different from a question asking "what is the sales price?" when you also will need to subtract the calculated discount amount from the original price.

Tags

SOL 7.2 Practical Problems

Mathematical Equivalence

ON

Tags

SOL 7.11 Evaluating Algebraic Expressions

Caleb recorded the average temperature outside for 3 days.

Monday was 19 degrees.

Tuesday was -10 degrees.

Wednesday was 7 degrees.

What is the difference in temperature between Monday and Tuesday?

• 29

• 12

• 17

• 9

Tags

SOL 7.1e Absolute Value

Rachel wants to buy a  necklace for her mother.

• The original price is $35, not including tax.

• The necklace is on sale for 75% off of the original price.

What is the sale price of the necklace, not including tax?

• $26.25

• $8.75

• $40

• $43.75

Tags

SOL 7.2 Practical Problems

Mathematical Equivalence

ON

Tags

SOL 7.11 Evaluating Algebraic Expressions

Simplify the following expression

when c=-2 and r=5

  -3c -r² + cr

Mathematical Equivalence

ON

Tags

SOL 7.11 Evaluating Algebraic Expressions

Dr. Patel needs to see 90 patients on Monday. This is half as many and Dr. Lee. 

How many patients does Dr. Lee need to see?

• 180

• 45

• 135

• Twice as many patients as Dr. Patel

Tags

SOL 7.2 Practical Problems

Mrs. Washington assigned a math project on April 1st.  The students had 2 weeks to work on it.  Charles worked on his for 6 ¼ hours. Kassidy worked on hers for 2 ⅕ hours.  Altogether, how many hours did they work on their math projects?

Mathematical Equivalence

ON

Tags

SOL 7.2 Practical Problems

If a=3 and b=2 what is the value of

(4a)² + 5b²

Mathematical Equivalence

ON

Tags

SOL

7.11

Evaluating

Algebraic

Expressions

• I have no idea

• -3/4

• 3/4

• I don't know

Tags

SOL 7.1e Absolute Value