1.
Use estimation to place the decimal point in the product
18.7 × 21 = 3927.
A.
39.27
B.
392.7
C.
3.927
D.
3927.0
Hint
2.
Find 6 × 18.52.
A.
111.02
B.
1111.2
C.
108.12
D.
111.12
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.
306.05 in.
B.
30.625 in.
C.
306.25 in.
D.
30.605 in.
Hint
4.
Antonio earns $7.65 per hour. How much money does he make if he works 8 hours?
A.
$61.20
B.
$612.00
C.
$6.12
D.
$60.80
Hint
5.
Write 7.2 × 10
6
in standard form.
A.
7,200,000
B.
72,000,000
C.
720,000
D.
0.0000072
Hint