7th Grade Review (a)

Number Sense

100

Convert 4/5 to a decimal and a percent.

.8 and 80%

200

Evaluate. (-3/5) + (1/6)

-13/30

300

The submarine dives 2 feet per second. What is its depth after 20 seconds?

-40 feet

400

A Marine called from Korea to say the temperature had risen 16 degrees since the sun came up. If it was 9 degrees when he called, what was the temperature BEFORE the sun came up?

-7

500

Barb had $10 in her bank account. She deposited $32. Then, she used her debit card to pay $54 for dinner. What is the new balance of her bank account?

-12

Expressions and Equations

100

Rewrite the expression using the distributive property. 

12x + 18

6(2x + 3)

200

Solve. -3x + 12 = 48

-12

300

What inequality represents "nine more than three times a number is greater than 21".

3n + 9 > 21

400

Solve. -2(x - 4) < -8

x > 8

500

Mel cleans houses. She earns $7.50 every hour that she dusts, and $10 every hour that she scrubs floors. She scrubbed floors for one and a half hours and dusted for 2 hours. How much money did Mel earn?

$30

Proportional Relationships and Percent

100

Tony's bill at the restaurant was $9.52. If he wants to leave a 20% tip, how much would his TOTAL bill be?

$11.42

200

What are the 2 requirements for proportional relationships on a graph?

1. cross through the origin

2. straight line

300

The scale on a road map is 1in = 40 miles. What is the actual length of a road that measures 2.5 in on the map?

100 miles

400

Ari borrowed $2,000 and paid it back over 3 years. The simple interest rate was 2% annually. How much did Ari pay over the three years?

$2,120

500

Ann's paycheck was $200 for working 20 hours. Bob's paycheck was $105 for 10 hours. Cal's paycheck was $184 for 16 hours. Who makes the LEAST per hour? Who makes the MOST per hour?

Least= Ann

Most= Cal

Geometry

100

How many different triangles can you make with...

1) side lengths of 2,3,4

2) side lengths of 2,2,5

3) angles of 80 degrees, 77 degrees, and 23 degrees

4) angles of 40 degrees, 50 degrees, and 80 degrees

1) ONE, IT'S UNIQUE

2) NONE

3) MORE THAN ONE, AMBIGUOUS

4) NONE

200

What are the cross sections of a cylinder that is cut parallel to the base? Perpendicular to the base? Cut diagonally from top left to bottom right?

parallel- circle

perpendicular- rectangle

diagonal- ellipse 

300

Find the volume of a cube with side lengths of 4cm.

64 cm³

400

Find the area AND circumference of a circle with a diameter of 10in.

area= 78.5 in²

circumference= 31.4 in

500

How much wrapping paper with John need to wrap a present in the shape of a rectangular prism with a  height of 5 ft, length of 7 ft, and width of 3 ft.

142 ft²

Samples, MMMR, Probability

100

What is the range for the following set of data.

2, 23, 34, 74, 21, 21, 8, 9, 65

72

200

Decide if the scenarios are valid random samples.

1) Survey every 10th person leaving a Dallas Cowboys game to find out what is the most popular football team in America.

2) Survey every 10th person at Walmart to find out which laundry detergent is most popular.

1) NOT RANDOM

2) RANDOM

300

Josh has a six sided dice. If he rolls it 60 times, how many times should Josh expect to roll a six?

10

400

There are 7 girls and 2 boys on the WMS ping pong team. There are 4 girls and 6 boys on the EMS ping pong team. A student from each team is chosen to compete against each other. What is the probability that both students chosen will be boys?

12/90 or 2/15 or 13%

500

What are the lower extreme, lower quartile, median, upper quartile, and upper extreme for the given set of data.

23, 29, 34, 33, 22, 38, 28, 27, 36, 35, 28

LE- 22  LQ- 27  M- 29  UQ- 35  UE- 38