1.
Estimate
.
A.
4
B.
3
C.
5
D.
2
Hint
2.
Estimate
.
A.
27
B.
36
C.
40
D.
30
Hint
3.
Estimate
× 21.
A.
16
B.
15
C.
28
D.
11
Hint
4.
If a batch of cookies takes
of an hour to prepare and bake, about how many batches of cookies can be prepared and baked in three hours?
A.
10
B.
15
C.
12
D.
13
Hint
5.
Estimate

.
A.
1
B.
1
C.
0
D.
Hint