1.3+Measuring+Temperature+0910

S.R April 12th,2010 Math 7B

//__**Big Idea: Negative numbers help us to model many real world situations**__.

__**Essential Question: How do i know what number is half way between two different degrees?**__//


 * Problem 1.3- Measuring Temperature**

A. Arrange the following temperatures in order from lowest to highest: -8 ° ,-4 ° ,12 ° ,-2 °, 0 ° ,-15 ° ? -15 °, -8 °, -2 °, 0 °, 4 °, 12 °

B.The temperature reading on a thermometer is 5 celciusF. Tell what the new reading will be if the temperature

1.rises 10° 5° + 10° = 15°

2. falls 2° 5° - 2 ° = 3°

3. falls 10° 5° - 10° = - 5°

4. rises 7° 5° + 7° = 12°

C. The temperature reading on a thermometer is -5° F. Tell what the new reading will be if the temperature:

1. falls 3° -5° - 3° = - 8°

2. rises 3° -5° + 3 = -2

3. falls 10° -5° - 10°= - 15°

4. rises 10° -5° + 10° = 5°

D. In 1-6, give the temperature halfway between the two given temperatures.

1. 0° and 10° = 5° 2. -5° and 15° = 10° 3. 5° and -15° = 10° 4. 0° and -20° = 10 5. -8° and 8° = 0° 6. -6° and -16° = 11°

E. In 1-4, tell which temperature reading is farther from -2°.

1. -6° or 6° 2° 2. -7° or °3 -7° 3. 2° or -5° -5° 4. 2° or - °5 2°

F. Explain how you determined your answer for part 4 of question E.

Part E, 4 was:Which is farther from -2°, choices: 2° or -5°. i answered 2°, because -5° is only 3 away from -2°, where as 2° is 4 numbers away from -2°, which makes this one farther.