1.
The sum of any number and its additive inverse is _____.
A.
always 0
B.
always -1
C.
always positive
D.
always negative
Hint
2.
When one positive tile is paired with one negative tile, the result is a(n) _____.
A.
opposite
B.
additive inverse
C.
zero pair
D.
algebra tile pair
Hint
3.
Find the sum 3 + (-13).
A.
-10
B.
-16
C.
16
D.
10
Hint
4.
Shanee had $190 in her bank account. She had to give her mother $80 from the account, but she got $50 to put into the account from her birthday. If she needs to take out $20 more to pay for a new stereo, how much will she have left?
A.
$140
B.
$40
C.
$150
D.
$340
Hint
5.
Simplify –10
x
+ (-4
x
).
A.
6
x
B.
-6
x
C.
-14
x
D.
14
x
Hint