1.
The solution for 124 -
a
= 77 is ______.
A.
57.
B.
211.
C.
201.
D.
47.
Hint
2.
A mathematical sentence like
b
- 432 = 197 is called a(n) ______.
A.
solution
B.
variable
C.
equation
D.
evaluation
Hint
3.
Solve
6 mentally.
A.
3
B.
12
C.
24
D.
2
Hint
4.
Translate ''a product of a number and seven is 49'' into an equation.
A.
x
- 7 = 49
B.
49
C.
7
x
= 49
D.
x
+ 7 = 49
Hint
5.
Which value is the solution of
A.
117
B.
90
C.
108
D.
99
Hint