Write this number in scientific notation.
3,287,000
3.287 x 10 to the power 6
100
write 0.000058 each number in scientific notation
5.8 x 10 to the power of -5
200
84.2-62.4
What is 21.8
200
0.3125 x 8?
2.5
200
581 ÷ 0.004
145,250
200
write 0.000812 each number in scientific notation
8.12 x 10 to the power of -4
200
12 - 2.38
9.62
300
21.5-15.28
6.22
300
241.82 x 3.8
918.916
300
72.8 ÷ 1.4
52
300
Write (1.64 ?x 10? to the power of -7) in standard form
0.000000164
300
2.89 x 0.23
0.6647
400
15+12.6
27.6
400
0.4 x 0.17
0.068
400
A candle burns 0.23 inches per hour. How long will it take a
15-inch candle to completely burn?
65.22 hours
400
Write (5.07 x 10 to the power of 11) in standard form
507,000,000,000
400
9 ÷ 30
0.3
500
Matthew bought a San Diego
Chargers jersey for $39.99, a
pennant for $10.25, a hat for $13.75.
How much more did Matthew pay for
the jersey than for the hat?
$26.24
500
Two factors are multiplied and their product is
34.44. One factor is a whole number. How many decimal places are in the other factor?
2. The product has the total of two decimal places of the factors. 0 + 2 = 2
500
A machine in a deli cooks hot dogs by rotating them past a heat source. One rotation takes 0.75 minutes, and it takes 9 minutes to fully cook the hot dog. How many rotations does it take to cook the hot dog?
12
500
Ports on the Mississippi River north of New Orleans handle
5,800,000,000,000 pounds of cargo each year. Write this number in scientific notation.
5.8 x 10 to the power of 12
500
The standard weight of a dime is
2.268 grams, and the standard
weight of a quarter is 5.670
grams. How many times greater
is a quarter’s weight than a dime’s
weight?