Opposites & Absolute Value
Comparing and Ordering
Number Lines
Addition
Subtraction
100
True or False:
Point A is at |-6|.
False. Absolute value is distance from zero, so |-6| should be at positive 6, or Point F.
100
Complete the statement with <, >, or =.
-13 _____ -15
-13 > -15
100
Write an addition equation for the following number line diagram.
40 + (-30) = 10
100
Find the sum. Use a number line diagram if needed.
350 + (-200)
150
100
Write the subtraction expression as an addition expression to find the difference.
-2 - 12
-2 + -12 = -14
200
True or False:
Point B is the opposite of -4.
False. The opposite of -4 is 4, or Point E.
200
The table shows the elevations of various cities. Which city is the farthest from sea level, and how do you know?
Denver, CO, because it is the farthest number away from zero and has the largest absolute value.
200
Write an addition equation for the following number line diagram.
-20 + 15 = -5
200
Find the sum. Use a number line diagram if needed.
40.5 + (-40.5)
0
200
Write the subtraction expression as an addition expression to find the difference.
-10 - (-4)
-10 + 4 = -6
300
True or False:
Point C is at |-2.5|.
True. The absolute value of -2.5 is 2.5 because -2.5 is 2.5 units away from zero.
300
Here are the low temperatures (in Celsius) for one week in Juneau, Alaska. What was the coldest day, and how do you know?
Wednesday because it would be the farthest to the left on a number line.
300
Draw a diagram to represent the situation. Then write an addition equation that represents the final temperature. Be sure to have two arrows and a point.
-5 + -8
-5 + -8 = -13
300
Find the sum. Use a number line diagram if needed.
-30 + -14
-44
300
Write the subtraction expression as an addition expression to find the difference.
10 - (-10)
10 + 10 = 20
400
True or False:
Point D is the opposite of -3.
True. The opposite of -3 is 3.
400
Complete the statement with <, >, or =.
|-13| _____ |-15|
|-13| < |-15| because -15 is farther away from zero.
400
Draw a diagram to represent the situation. Then write an addition equation that represents the final temperature. Be sure to have two arrows and a point.
-13 + 9
-13 + 9 = -4
400
Find the sum. Use a number line diagram if needed.
-50 + 37
-13
400
It is common for different types of fish to swim at different depths of the ocean and for different types of birds to fly at different heights above the ocean. What is the difference in elevation between a puffin at 20 meters and an octopus at -925 meters?
20 - (-925)
20 + 925
945 meters
500
True or False:
Point F is at |6|.
True. The absolute value of 6 is 6 because 6 is 6 units away from zero.
500
Complete the statement with <, >, or =.
|-7| _____ |7|
|-7| = |7| because they are both 7 units away from zero.
500
The temperature at sunset one day was 5 degrees Celsius. By sunrise the next day, the temperature had decreased by 20 degrees. What was the temperature at sunrise the next day? Use the number line to show the starting temperature, the decrease in temperature, and the new temperature. You should have 2 arrows and a point. 
5 + -20 = -15
500
The sum of opposites is always _________.
Zero
500
It is common for different types of fish to swim at different depths of the ocean and for different types of birds to fly at different heights above the ocean. What is the distance between a tuna at -175 meters and an albatross at 95 meters that is directly above the tuna?
|-175 - 95|
|-175 + -95|
|-270|
270 meters
(REMEMBER DISTANCE IS A POSITIVE VALUE)