1.
To add fractions with like denominators,________.
A.
add the numerators
B.
add the numerators and add the denominators
C.
subtract the numerators
D.
add the numerators and subtract the denominators
Hint
2.
Suppose you bought two storage blocks for your bedroom. One is
inches high. The other is
inches high You want to stack them and fit them under the window, which is 21 inches from the floor. Will they fit?
A.
None is correct.
B.
They will not fit at all.
C.
They will fit but not exactly.
D.
They will fit exactly.
Hint
3.
Subtract
from
.
A.
B.
−9
C.
D.
9
Hint
4.
Evaluate
a
-
b
if
a
=
and
b
=
.
A.
B.
1
C.
D.
-1
Hint
5.
Solve
r
=
+
.
A.
r
= 1
B.
r
=
C.
r
=
D.
r
= -1
Hint