7th Grade Q1-Q3 Review

7th Grade Q1-Q3 Review

Part One: The Number System

Operations with Positive and Negative Numbers Quick Review

• -4 + (-6) =

• -2.2 + (-1.5) =

• -5 - 6 =

• 6 + (-3) =

• 5 - 8 =

Multiple Choice

Which of the following has the same value as -5 + (-6)

• -5 + 6

• -6 + 5

• 5 - 6

• -6 - 5

Multiple Choice

Which of the following has the same value as -6 + 7?

• 6 - 7

• 7 - 6

• -7 + 6

• -6 + (-7)

Multiple Choice

The temperature was -50 degrees Fahrenheit at the North Pole and it increased 20 degrees throughout the day. What is the temperature now?

• -70 degrees

• 30 degrees

• -30 degrees

• 10 degrees

Multiple Choice

James had $42 in his bank account and spent $56 at the store. How much is in his bank account now?

• $98

• $14

• -$14

• -$36

Absolute Value Quick Reminders

• Absolute value represents a number's distance from zero on a number line and is always positive

• |-4| =

• |4|=

• |-2 + 8| =

• |4 - 8| =

Multiple Choice

Which expressions represents the distance between -4 and 8 on a number line?

• |-4 - 8|

• |-4 + 8|

• -4 - 8

• -4 + 8

Multiple Choice

What is the value of |-10 + 5| ?

• 5

• 10

• -5

• -10

Fractions, decimals, and percentages quick reminders

• To change a fraction to a decimal or percent, multiply to get the denominator to be 100 OR if you have a calculator, divide the top number by the bottom number

• Change 24/50 to a decimal and a percent

• Change 32/125 to a decimal

• Change 0.43 to a percent

• Change 4.30 to a percent

• Change 0.043 to a percent

Multiple Choice

A student got 7 questions out of 20 correct on their assignment. What percent did they get correct?

• 7%

• 50%

• 35%

• 20%

Multiple Choice

What is 88/125 as a decimal?

• 0.465

• 8.80

• 0.876

• 0.704

Multiple Choice

What is 0.671 as a percent?

• 67.1%

• 6.71%

• 671%

• 0.671%

Part Two: Equations, Expressions, and Inequalities

Quick Review Distributive Property

• 4(m + 6)

• -5(p + 3)

• -8(3k - 4)

Multiple Choice

Which of the following is equivalent to -3(5x - 2)?

• -2x - 5

• -2x + 2

• -15x - 6

• -15x + 6

Multiple Choice

Which expression is equivalent to the following: 5(2x + 12)

• 10x + 52

• 12x + 42

• 10x + 60

• 52x + 512

Quick Combining Like Terms

• 3x + 4x =

• 2x + 3 + 5x =

• -6x -2y + 4x =

• 4x + 2 - x=

Multiple Select

Which of the following is equivalent to 5x + 2 + 9x. Select ALL that apply.

• 7x + 2

• 14x + 2

• 7x + 1 + 7x + 1

• 14x - 2

• 15x - x + 2

Multiple Choice

Which of the following is equivalent to -8x + 3 + 2x?

• -10x + 3

• 5x + 3

• -3x

• -6x + 3

Distributive Property AND Combining Like Terms Quick Review

• 4(m + 4) + 2m

• 3y - 2(y + 6)

• 4(2x + 3) + 5(4x + 10)

Multiple Choice

Which expressions are equivalent?

• 3(4y - 3) + 5y and 17y -3

• 3(4y - 1) + 5y and 17y - 3

• 3(4y -3) + 5y and 17y + 3

• 3(4y -1) + 5y and 17y + 3

Multiple Choice

Which expression is equivalent to the following: 5(2y + 8) + 6(y + 3)

• 16y + 42

• 10y + 40

• 22y + 18

• 16y + 58

Solving Equations

• Do inverse (opposite) operations to get the variable (letter) by itself.

• Start with the addition or subtraction.

• 3x + 5 = 17

• -5x + 16 = 51

•  $\frac{1}{7}x\ +\ 14\ =\ 24$  

• 2x + 6 + 5x = 20

Multiple Choice

-3t + 4 = 19

• -5
• 7
• -7
• 3

Multiple Choice

-6p - 3 = 9 

• -2
• 2
• 6
• 3

Multiple Choice

2s - 4 = 6

• 5
• 3
• -5
• 2

Mean, Median, Mode, Range, MAD Quick Review

Multiple Choice

How do you find the range of a set of data?

• Find the middle number

• The number that appears the most

• Add all the numbers up and divide them by the total amount of numbers

• The highest value minus the lowest value

Multiple Choice

What is the range of the follow set of data:

60, 85, 29, 32, 45, 17, 55

• 67

• 43

• 68

• 56

Multiple Choice

What is the mean of the following set of data?

2, 6, 10, 31, 14, 8

• 11.8

• 71

• 12

• 14.2

Multiple Choice

What is the mode of the following data set?

2, 4, 6, 8, 7, 9

• 2, 4, 6, 7, 8, 9

• 4

• 6

• no mode

Multiple Choice

What is the median of the following data set?

25, 42, 36, 12, 19

• 36

• 25

• 39

• 26.5