Meaning of Positive and Negative Numbers
Write a number that shows that it is 20 degrees colder than zero.
-20
(-3) + (-3)
-6 or (-6)
5 - 3
2
(-4) + 2
-2 or (-2)
When Steve woke up. His temperature was 102º F. Two hours later it was 3º lower. What was his temperature then?
99º F
Write a number that shows that you have a credit card bill of $150 that you need to pay.
-150
54 + 155
209
-3 - (-3)
0
25 - 17
8
It will be – 12º tonight. The weatherman predicts it will be 25º warmer by noon tomorrow. What will the temperature be by noon tomorrow?
13º
Write a number that shows that you have $50.
50
(-13) + 7
-6 or (-6)
-25 - 7
-32 or (-32)
25 + (-55)
-30 or (-30)
If it is 5º outside and the temperature will drop 17º in the next six hours, how cold will it get?
-12º
Write a number that shows that a mountain is 9,500 above sea level.
9,500
176 + (-212)
-36 or (-36)
150 - 200
-50 or (-50)
-77 - 89
-166 or (-166)
Josie has $47 left on her checking account. If she writes a check for $55, what will Josie’s balance be?
- $8
Write a number that shows that you had zero points in a game and then you lost 200 points.
-200
-7.75 or (-7.75)
-32 -(-63)- (-3)
34
25.6 - 33.7
-8.1 or (-8.1)
The elevation of Mt. Everest is 29,028 feet. The elevation of the Dead Sea is –485 feet. What is the difference in the elevation between Mt. Everest and the Dead Sea?
29,513 feet