1.
A mathematical sentence like
b
- 432 = 197 is called a(n) ______.
A.
equation
B.
variable
C.
evaluation
D.
solution
Hint
2.
Solve
6 mentally.
A.
24
B.
3
C.
12
D.
2
Hint
3.
Write ''16 less than a number is 28'' as an equation.
A.
n
- 16 = 28
B.
28
C.
n
+ 16 = 28
D.
16
n
= 28
Hint
4.
When a number is decreased by 16, the result is 64. What is the number?
A.
48
B.
80
C.
1024
D.
4
Hint
5.
Which value is the solution of 3
x
– 7 = 14?
A.
9
B.
8
C.
6
D.
7
Hint