1.
Use estimation to place the decimal point in the product
18.7 × 21 = 3927.
A.
39.27
B.
392.7
C.
3927.0
D.
3.927
Hint
2.
Find 6 × 18.52.
A.
111.12
B.
111.02
C.
108.12
D.
1111.2
Hint
3.
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.
30.625 in.
D.
306.05 in.
Hint
4.
Find 8
k
if
k
= 0.5238.
A.
4.9231
B.
4.1904
C.
5.285
D.
3.483
Hint
5.
Find 4 × 0.0034.
A.
0.0126
B.
1.36
C.
0.1216
D.
0.0136
Hint