1.
Solve the equation.
___ + 2 = 5
A.
5
B.
2
C.
3
D.
7
Hint
2.
Solve the equation.
___ − 12 = 12
A.
24
B.
12
C.
18
D.
0
Hint
3.
Solve the equation.
___ + 8 = 19
A.
11
B.
12
C.
9
D.
27
Hint
4.
Solve the equation.
12 + ___ = 23
A.
11
B.
10
C.
35
D.
9
Hint
5.
Juan scored 7 points in the first half of a football game. At the end of the game, he had scored a total of 21 points. Write an equation to find how many points he scored in the second half.
A.
7 + ■ = 21
B.
7 − ■ = 21
C.
■ = 21 + 7
D.
■ − 21 = 7
Hint