What is the answer to a subtraction problem called?
Difference
A seal is swimming at sea level. It dives down 12 meters to catch some fish. Then, it swims back up 8 meters. What is the seal's final elevation?
-4 meters
-7 + 2 = ____
-5
(-4)(-4) = _____
16
An addition problem is modeled below. How many zero pairs are there?
None
What is the sum of -18 and -10?
-28
A golfer had the following scores for a 4-day tournament. What was his total score?
-11
9 - (-3) = _____
12
(-96) ÷ 8 = _____
-12
Brady solved the problem -5 + 2 on the number line below. What did he do wrong?
He subtracted 2 instead of adding. The correct answer should be -3.
What's it called when you have a -1 and a +1 that can be crossed out?
Allen's score in a video game was changed by -75 points because he missed some targets. He got -15 points for each missed target. How many targets did he miss?
5 targets
-60 + (-15) = _____
-75
(-16) x 5 = _____
-80
Fill in the multiplication problem that is modeled on the number line below.
_____ x _____ = _____
-2 x 4 = -8
or
4 x -2 = -8
What is the quotient of -48 and -16?
3
Jason earned 40 points on a game show. Then, he lost 50 points. Finally, he earned back 30 points. How many points did he end up with?
20 points
Which expression has the same value as (-3) + (-5)?
A. -3 - (-5)
B. -3 + 5
C. (-5) + (-3)
D. - 5 - (-3)
C
100 ÷ (-2) ÷ 2
-25
Draw a model for -7 + 2. Then, give the sum.
What is the product of -254 and -7?
1,778
Using the expression below, which number could you replace with its opposite and have the sum remain positive?
20 + 85
20
28 + (-100) = _____
-72
(-5)(3)(-3)(2)
90
Write an addition problem to represent this model.
(Yes, that is half of a negative circle)
____ + ____ = ____
-5.5 + 1 = -4.5