1.
Use estimation to place the decimal point in the product
18.7 × 21 = 3927.
A.
39.27
B.
3.927
C.
3927.0
D.
392.7
Hint
2.
A.
150
B.
0.15
C.
1.5
D.
15
Hint
3.
Write a multiplication problem for the model shown.
A.
4 × 2
B.
0.4 × 2
C.
4 × 4
D.
0.8 × 2
Hint
4.
Evaluate 4
x
if
x
= 0.016.
A.
0.64
B.
6.4
C.
0.064
D.
64
Hint
5.
A dollar bill is 6.125 inches long. Caitlin used it as a measuring device and found that her shelf was 5 times the length of the dollar bill. How long is her shelf?
A.
30.605 in.
B.
306.25 in.
C.
306.05 in.
D.
30.625 in.
Hint