Question 1

What is an expression?

Accepted Answer

A math phrase with no equals sign.

Question 2

Which is an expression: 3x + 5 or 3x + 5 = 17?

Accepted Answer

3x + 5

Question 3

What is a coefficient?

Accepted Answer

The number multiplying a variable.

Question 4

What is the coefficient in 7m + 2?

Accepted Answer

7

Question 5

What are like terms?

Accepted Answer

Terms with the same variable part.

Question 6

Which pair contains like terms: 3x and 5x or 3x and 5y?

Accepted Answer

3x and 5x

Question 7

Rule for combining like terms

Accepted Answer

Add or subtract the coefficients and keep the same variable.

Question 8

Can 3x and 2y be combined?

Accepted Answer

No, because the variables are different.

Question 9

What is the order of operations?

Accepted Answer

Parentheses first, then exponents, then multiply/divide left to right, then add/subtract left to right.

Question 10

Evaluate 7 + 2 × 5.

Accepted Answer

17

Question 11

Why is 7 + 2 × 5 equal to 17?

Accepted Answer

Multiply first: 2 × 5 = 10, then 7 + 10 = 17.

Question 12

Evaluate (14 - 6) ÷ 2.

Accepted Answer

4

Question 13

Write "4 more than x" as an expression.

Accepted Answer

x + 4

Question 14

Rule for "more than"

Accepted Answer

Add the amount to the variable or number.

Question 15

Rule for evaluating expressions

Accepted Answer

Substitute the number for the variable, then simplify.

Question 16

Evaluate n + 5 when n = 6.

Accepted Answer

11

Question 17

Evaluate 2a + 1 when a = 4.

Accepted Answer

9

Question 18

Simplify 9m - 2m + 1.

Accepted Answer

7m + 1

Question 19

Which operation undoes multiplication?

Accepted Answer

Division.

Question 20

What is the most important equation rule?

Accepted Answer

Use the inverse operation and do the same thing to both sides.

Question 21

Rule for checking a solution

Accepted Answer

Substitute the number for the variable and see if the equation is true.

Question 22

Is x = 5 a solution of x + 2 = 7?

Accepted Answer

Yes, because 5 + 2 = 7.

Question 23

Solve x + 4 = 10.

Accepted Answer

x = 6

Question 24

Rule for solving x + a = b

Accepted Answer

Subtract a from both sides.

Question 25

Solve y - 3 = 8.

Accepted Answer

y = 11

Question 26

Rule for solving x - a = b

Accepted Answer

Add a to both sides.

Question 27

Solve 4n = 20.

Accepted Answer

n = 5

Question 28

Rule for solving ax = b

Accepted Answer

Divide both sides by a.

Question 29

Solve x ÷ 6 = 4.

Accepted Answer

x = 24

Question 30

Rule for solving x ÷ a = b

Accepted Answer

Multiply both sides by a.

Question 31

Write and solve "a number plus 6 equals 14."

Accepted Answer

x + 6 = 14; x = 8

Question 32

In an ordered pair (x, y), which coordinate comes first?

Accepted Answer

x

Question 33

Most important ordered pair rule

Accepted Answer

x first, then y.

Question 34

What does the x-coordinate tell you?

Accepted Answer

Left or right.

Question 35

What does the y-coordinate tell you?

Accepted Answer

Up or down.

Question 36

Right 2 and up 3 from the origin is what ordered pair?

Accepted Answer

(2, 3)

Question 37

Rule for identifying quadrants

Accepted Answer

Look at the signs of x and y.

Question 38

What are the signs in Quadrant II?

Accepted Answer

(-, +)

Question 39

Which quadrant contains (-3, 4)?

Accepted Answer

Quadrant II

Question 40

Rule for distance with the same y-values

Accepted Answer

Subtract the x-values and make the answer positive.

Question 41

Find the distance from (-2, 1) to (3, 1).

Accepted Answer

5 units

Question 42

Find the distance from P(-3, 2) to Q(2, 2).

Accepted Answer

5 units

Question 43

What unit is used for area?

Accepted Answer

Square units, such as cm².

Question 44

Most important area rule

Accepted Answer

Use the correct formula and write square units.

Question 45

What is the rectangle area formula?

Accepted Answer

A = l × w

Question 46

Find the area of a rectangle with length 7 and width 4.

Accepted Answer

28 square units

Question 47

What is the parallelogram area formula?

Accepted Answer

A = b × h

Question 48

Find the area of a parallelogram with base 8 and height 3.

Accepted Answer

24 square units

Question 49

What is the triangle area formula?

Accepted Answer

A = 1/2 × b × h

Question 50

Find the area of a triangle with base 10 and height 6.

Accepted Answer

30 square units

Question 51

What solid is formed by a net with six equal square faces?

Accepted Answer

A cube.

Question 52

What does surface area measure?

Accepted Answer

The outside faces of a 3D figure.

Question 53

What does volume measure?

Accepted Answer

The space inside a 3D figure.

Question 54

Most important box rule

Accepted Answer

Outside = surface area; inside/holds = volume.

Question 55

What unit is used for volume?

Accepted Answer

Cubic units, such as cm³.

Question 56

What is the rectangular prism volume formula?

Accepted Answer

V = l × w × h

Question 57

Find the volume of a box measuring 4 cm by 3 cm by 2 cm.

Accepted Answer

24 cm³

Question 58

What is the rectangular prism surface area formula?

Accepted Answer

SA = 2lw + 2lh + 2wh

Question 59

Find the surface area of a 3-by-2-by-1 rectangular prism.

Accepted Answer

22 square units

Question 60

What should you do on calculation questions?

Accepted Answer

Show your work, use the formula reference, and write the correct units.