Adding
78 + -27
51
12 - 78
-66
How can we rewrite 15 - (-45) as an addition problem?
15 + 45
Adding a negative is the same as...
Subtracting a positive.
The overnight low temperature in Walterboro was 59°F. It is supposed to drop 72°F in ten hours, What will the new temperature be?
-13
-62 + -23
-85
-28 - 13
-41
How can we rewrite -19 - 74 as an addition problem?
-19 + -74
Subtracting a positive is the same as...
adding a negative.
Tony is playing a card game called Evil Dead, where the goal is to get the highest possible score by killing zombies. In the first round, Tony scored - 24 points. In the second round, he scored 72 points. What is Ronnie's total points now?
48
-167 + 34
-133
26 - (-37)
63
How can we rewrite 27 - 64 as an addition problem?
27 + -67
What do we do in this situation? 67 - (-6)
Make the problem 67 + 6 because subtracting a negative is the same as adding a positive.
Felix dug a hole that was 15ft deep so he could burry a tree that is 86ft tall. How many ft will the tree be from the ground?
71
78 + -49
29
89 - (-89)
178
23 - (-67)
23 + 67
What do we do when we add a positive and a negative number?
Subtract the numbers and keep the sign of the larger number.
There is a pole standing 64ft deep water. The pole is 93ft tall. How much of the pole is above the water?
29ft
1,676,728 + -1,676,728
0
- 46 - (-23)
-23
-73 - (-78)
-73 + 78
What is the definition of absolute value?
The distance from a point on a number line from zero.
Tom has $372 worth of debt. His aunt gave him $97. Tell me the equation we could write to solve this problem.
-372 + 97 or 97 - 372