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# 1 8 negative numbers

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### 1 8 negative numbers

1. 1.
2. 2. 1-8 Negative Numbers<br />Give a number that is between two negative numbers.<br />Round negative numbers up or down or to the nearest value of a decimal place.<br />Enter negative numbers on a calculator.<br />Convert negative mixed numbers to decimals.<br />Correctly interpret situations with two directions as positive, negative, or corresponding to zero.<br />Graph and read negative numbers on a number line.<br />Is the price right?<br />When you go shopping, the amount you pay for items must be greater than the store owner's cost in order for the store to avoid losses and remain in business.<br />What number would represent...<br /> make \$3<br /> make \$2<br /> make \$1<br /> make \$0.50<br /> break even<br /> lose \$1<br /> lose \$1.50<br /> lose \$2<br /> lose \$3<br />10<br />8<br />9<br />1<br />0<br />2<br />3<br />4<br />5<br />6<br />7<br />-1<br />-2<br />-3<br />-4<br />-5<br />-6<br />-7<br />-8<br />-9<br />-10<br />PROFITS<br />LOSSES<br />BREAK EVEN<br />
3. 3. +<br />above<br />gain<br />increase<br />deposit<br />-<br />below<br />loss<br />decrease<br />withdrawl<br />**Write this in your notebook**<br />Today's Date: 9-21-10<br />Section 1-8<br />
4. 4. **Put the definitions of negative numbers & integer in your notebook!**<br />Negative numbers - uses (-) sign; <br /> (-) sign means "opposite of"<br />For example,<br /> The opposite of making \$1.50 is losing \$1.50<br /> similarly,<br /> The opposite of 1.50 is -1.50.<br />Integer - whole numbers & their opposite<br />
5. 5. Where else have you seem opposites used?<br />
6. 6. Represent each situation with a positive or negative number.<br />1. In golf, a score used as a standard is called par. name an integer that represents each of the following golf scores.<br /> a. 6 strokes below par<br /> b. three over par<br /> c. even with par<br />2. A space shuttle is to be launched. Represent each of these times (in seconds) by positive or negative numbers.<br /> a. 4.3 seconds before launch<br /> b. 1 minute after the launch<br /> c. the time of the launch<br />3. Write a number to represent the depth of the Marianas Trench, the deepest part of the Pacific Ocean. It is about 36,200 feet below sea level.<br />4. Next to a bowler's name on TV is the number -8. Is the bowler ahead or behind?<br />
7. 7. Convert to a decimal & round negative numbers.<br />5. The elevation of some parts of New Orleans are 2 feet below see level.<br /> a. Write this number to show that the elevation is below sea level.<br /> b. Write this number as a decimal.<br /> c. Round this number to the nearest foot.<br />6. The price of a share of stock went down 1 dollars.<br /> a. How will this be written on the stock market pages of a newspaper?<br /> b. Write the answer to part a as a decimal.<br /> c. Round the answer to part b to the nearest penny.<br />