Please complete all work for the following problems on the formative. You may submit your formative and go back and edit/ redo your problems as needed.
Use a number line to solve the following problems.
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Question 1
1.
Solve and show your work on the number line.
-5 + (-4) =
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Question 2
2.
Solve and show your work on the number line.
8 + (-7) =
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Question 3
3.
Solve and show your work on the number line.
-9 + 12 + (-3) =
Use sum and difference to solve the following problems.
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Question 4
4.
Solve and show whether you added the two numbers or subtracted.
-14 + (-22) =
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Question 5
5.
Solve and show whether you added the two numbers or subtracted.
-15 + 40 =
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Question 6
6.
Solve and show whether you added the two numbers or subtracted.
-31 + - 68 =
The following word problems involve changes in temperature. For each situation, you will need to first evaluate whether the temperature is increasing or decreasing. Please show your work on the formative. You may use this temperature applet to help you solve the problems.
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Question 7
7.
At noon, the temperature was 5 degrees Celsius. By late afternoon, it has risen 6 degrees Celsius. What was the temperature late in the afternoon?
**Do NOT include WORDS in your answer. Just type the integer. **
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Question 8
8.
The temperature was 8 degrees Celsius at midnight. By dawn, it has dropped 12 degrees Celsius. What was the temperature at dawn?
**Do NOT include WORDS in your answer. Just type the integer. **
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Question 9
9.
The temperature in the refrigerator is normally -5 degrees Celsius. However, the refrigerator door was left open, and the temperature in the refrigerator warmed up by 15 degrees Celsius after 1 hour. What was the temperature in the freezer after 1 hour?
**Do NOT include WORDS in your answer. Just type the integer. **
The following word problems involve changes in elevation. Here are two tables that show the elevations of the highest points on land and the lowest points in the ocean. Distances are measured from sea level. Elevation is always represented on a vertical number line where sea level is always 0.
You may use this elevation applet to help you solve the following problems. To use the applet drag the points marking the mountains and trenches to the vertical number line using the information on the tables below.
Mountains
Oceans
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Question 10
10.
Which point in the ocean is the lowest in the world?
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Question 11
11.
Which mountain is closest to sea level?
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Question 12
12.
Which is farther from sea level: the deepest point in the ocean, or the top of the highest mountain in the world?
Bonus Question: The following question is not required, but please give it a try. You must show your work to get credit for it.
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Question 13
13.
The highest elevation in North America is Mt. McKinley, which is 20,320 feet above sea level. The lowest elevation is Death Valley, which is 282 feet below sea level. What is the distance from the top of Mt. McKinley to the bottom of Death Valley?
**Do NOT include WORDS in your answer. Just type the integer. **