Rules
(Postive) + (Positive) = _______
Positive
(+3) + 8 = ____
11
14 + (-23) = ____
-9
gain 9 yards + lose of 4 yards
9 + (-4) =
A submarine was 15 feet below sea level. It then ascended 12 feet. Where is the submarine now?
-15 + 12 = -3 feet
(3 feet below sea level)
(Negative) + (Negative) = ________
Negative
29 + (+16) = ______
45
-6 + 18 = _____
12
25 feet below sea level + descend 13 feet
-25 + (-13) =
My cousin earned $25 snow blowing a driveway. She loaned me $15 for a new game. How much money does my cousin have?
25 + (-15) = $10
When signs are the same what operation do you use?
Addition
-42 + (-13) = ______
-55
-75 + 19 = ______
-56
save $200 + spend $56
200 + (-56) =
A football team loses 8 yards on the first play and then loses 5 yards on the next play. How many yards did they lose on the two plays?
-8 + (-5) = -13 yards
(Lost 13 yards)
When signs are different what operation do you use?
Subtract
65 + 22 = ______
87
-40 + 82 = _____
42
descend 22 feet + dive down 47 feet
-22 + (-47) =
You park in a garage 3 floors below ground level. Then you go up 12 floors in the elevator. What floor do you get off the elevator?
-3 + 12 = 9th floor
When signs are different. In the final answer you keep the sign of the ___________________.
Bigger number
-123 + (-61) = ______
-184
-34 + 43 = ______
9
made $88 + saved $100
88 + 100 =
The temperature in Plattsbugh this morning was -17 degrees. If the temperature rose 11 degrees by lunch time. What is the temperature now?
-17 + 11 = -6 degrees