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Study guide (graded) for Quiz #6: Multiplying Decimals

Last updated over 5 years ago

10 questions

10

10

10

10

10

10

10

10

10

10

Question 1

1.

Which of the following fractions is equivalent to the given decimal?

32/10

32/100

32/1,000

32/1

Question 2

2.

Solve using the shortcut for multiplying decimals by powers of 10 (10, 100, 1,000, etc). Hint: The decimal point gets moved a specific number of places.

Question 3

3.

Solve using the shortcut for dividing decimals by powers of 10 (10, 100, 1,000, etc). Hint: The decimal point gets moved a specific number of places.

Question 4

4.

Solve. Remember, the shortcut for moving decimal points when multiplying by powers of 10 (10, 100, 1,000, etc) doesn't work the same way when multiplying by other numbers.

Question 5

5.

How many places and which direction will the decimal point move to use the shortcut to solve?

Question 6

6.

Mavis is buying 1.2 pounds of really smelly cheese (mmmmm, cheese!!). This type of cheese sells for $4.80 per pound. How much will this cheesy purchase cost her?

Question 7

7.

Spongebob makes 8 Krabby Patties for Bubble Bass. Each one weighs .45 pounds. What is the total weight in Krabby Patties that Bubble Bass eats?

Question 8

8.

$20.90

Question 9

9.

Solve. SHOW ALL WORK ON THE COMPUTER!!! .25 X .6

Question 10

10.

Solve. SHOW ALL WORK ON THE COMPUTER!! 4.86 x 3.5

455

.00455

.0455

4,550

45.5

.455

.755

7,550

755

7.55

.0755

75,000

2.4

24

.024

240

.24

.0024

3 places to the right 

4 places to the right

5 places to the right

3 places to the left

4 places to the left

5 places to the left

$15.75

$5.75

$1.57

$15.76

$5.76

$157

2.70 pounds

3.6 pounds

.27 pounds

3.65 pounds

3.55 pounds

.36 pounds

Lila needs to put gas in her car. She sees a sign that makes her pull over. This station/deli is selling gas for $2.15/gallon. If she pumps 9.5 gallons, how much does she spend? (round to the nearest penny/hundredth's place)
 

$20.42

$20.21

$20.57

$20.43

$20.56