Unit 7: Numbers & Their Opposites Review

Match the following term with its definition.

• The distance between a given number and zero on a number line.

• Negative Number

• A number with a value less than zero.

• Opposite

• A statement comparing the value and location of two or more numbers.

• Absolute Value

• A number that can be made by dividing two integers or whole numbers.

• Rational Number

• A negative number represents the opposite location on the number line as a positive number.

• Inequality

Label the Coordinate Plane with the appropriate terms.

a

b

c

d

e

f

g

h

Origin

Quadrant 2

Quadrant 1

Order Pair (Coordinates)

X-axis

Quadrant 3

Quadrant 4

Y-axis

Which list shows the numbers in descending (greatest to least) order?

A metal rod is placed into the ground. The height of the rod above the ground is 100 feet. The depth of the rod is 20 feet in the ground.

What does 0 feet represent in this situation?

• The middle of the metal rod

• The top end of the metal rod

• The bottom end of the metal rod

• The point at which the metal rod enters the ground

Select TWO statements that can be represented by -40 feet.

• The length of a sailboat

• The length of a piece of ribbon

• The change in altitude of a balloon

• The distance of a tree branch above the ground

• The distance of a fish below the surface of the water

Move numbers into the boxes in order from closest to zero to farthest from zero.

​ (a)   , ​ (b)   , ​ (c)   , ​ (d)  

• -0.6
• 1.85
• 4.2
• -5.15

Plot a point to represent the opposite of 2.

Points A and B are the same distance from 0 on a horizontal number line oriented from left to right.

Use the drop-down menus to complete the sentence about the possible locations of points A and B.

The location of point A on the number line can be ​ (a)   and the location of point B on the number line can be ​ (b)   .

• -4
• 4
• 0
• 1

The coordinate plane shows four plotted points. Move a number into each blank to represent the ordered pair for point C.

Point C: (​ (a)   , ​ (b)   )

• -4
• -2
• 2
• 4