1. Adding and Subtracting Real Numbers
Hints!
RAP!
Simplify. Evaluate. Simplify (rationals). 2. 6.
Use a number line, $ money $ , or the RAP.
Same signs …ADD! Signs opposite … SUBTRACT! (Change doubles!)

2. 12. The temperature in Havre, Montana yesterday was –12 degrees.
During a Chinook the temperature will drop 20 more degrees, but then
warm up 50 degrees. What will the temperature be after the Chinook?
13. Jason got the following scores on his first 9 holes of miniature golfing.
-2, 3, 0, 1, -1, -1, 2, 4, What was his score after the 9th hole?
14. On its first down, the football team gains 8 yards. On its second down,
it gains 1 yard. On its third down, it loses 5 yards. On its fourth down,
it gains 7 yards. Does the football team gain at least 10 yards?

3. Multiplying and Dividing Real Numbers
HAND SIGNAL
Simplify. Evaluate. Simplify (rationals). 2. 6.
One negative makes a negative
Two negative s makes a positive

4. Division with ZERO THINK ABOUT THE EGG SCENARIO!!
Zero Divided by a Number = A Number Divided by Zero =
Proof: Proof:
Answer the following. It will be helpful to write the division problems as fractions.
BE CAREFUL when it comes to negatives and exponents!
The expression -34 means the opposite of 34. The exponent 4 applies to the base 3. The negative sign is not part of the base. In the expression (-3)4, the negative sign is part of the base -3. The exponent 4 applies to the base -3.
Use the order of operations to simplify each expression.