Subtracting Rationals (mainly integers)

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Subtracting Rationals (mainly integers) Hints!
RAP! Simplify. Evaluate. 1. 7. 9.
2. 3. 8. 10. 4. 5.
Use a number line, money , or the RAP.
-2 -1 0 1 2
3
Same signs ADD! Signs opposite SUBTRACT!
(Change doubles!)
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11. 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? 12. Your checking
account shows an overdraft, or a negative
balance. Your present balance is -25. You
deposit 100, then write a check for 12. What
is your new balance? 13. 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?