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Scientific Notation
Multiplying by Decimal Numbers
Dividing by Whole Numbers
Dividing by Decimal Numbers
Word Problems
100

Write this number in standard form.

2.705 x 104

27,050

100
3.2 x 0.1
What is 0.32
100
1.2 divided by 6
What is 0.2
100
18.45 ÷ 0.5
What is 36.9
100
A recipe for a cake uses five 2.75 ounce packages of ground walnuts. Find the total ounces of ground walnuts needed for the recipe.
13.75
200

Write this number in standard form:

3 x 10-3

0.003

200
0.001 x 0.02
What is 0.00002
200
4.26 ÷ 9
What is 0.5
200
The quotient of 0.1185 ÷ 7.9. Round to the nearest hundredth.
What is 0.02
200
Nick is buying a sports magazine that costs $4.95. What will it cost him for a year if he buys one magazine every month?
$59.40
300

Write this number in scientific notation:


2,090,000

2.09 x 106

300
The solution to y times 9.4 if y = 0.38
What is 3.572
300
46.25 ÷ 8
What is 5.8
300
The quotient of 14.804 divided by 4.3? Round your answer to the nearest hundredth
What is 3.44
300
Ms. Yarbrough is considering buying new carpeting for her living room. How many square feet of carpet will she need if her room is 16.3 feet by 24.6 feet?
400.98 feet squared
400

Write this number in scientific notation:

0.0000000045

4.5 x 10-8

400
The solution to xyz if x = 2.6, y = 0.38, and z = 1.02
What is 1.00776?
400
48.68 divided by 7? Round your answer to the ones place.
What is 7.0
400
10.272 divided by 2.4
What is 4.28
400
Logan paid $13.30 for 2.8 pounds of roast beef. Find the price per pound of the roast beef.
$4.75
500

Write this number in scientific notation:

0.91 x 107

9.1 x 106

500
The solution of z times 12.34 + y if z = 2.6, and y = 0.38
What is 32.464
500
Is the quotient of 8.3 ÷ 10 greater than or less than one? Why?
Less than one, because you are dividing a larger number into a smaller number.
500
If a decimal greater than 0 and less than 1 is divided by a lesser decimal, would the quotient be always, sometimes, or never less than 1?
What is Never. By dividing a lesser decimal, there will be more than 1 part.
500
George has a garden that covers 127.75 square feet. He wants to cover the soil of his garden with fertilizer. One bag of fertilizer covers 18.25 square feet. How many bags of fertilizer does George need?
7 bags