Decimal Review Add/Subtract/Multiply

Multiple Choice

When adding decimals it doesn't matter which number goes on top.

• True

• False

Multiple Choice

Add 63.547 and 2.88

• 65.545

• 67.427

• 66.427

• 67.575

Multiple Choice

When subtracting decimals its important to write the number with the biggest value on top.

• True

• False

How do I deal with a whole number?

When you are given a whole number, it is important to put the decimal after the last digit.

Multiple Select

What is the decimal equivalent of 57

• .57

• 5.7

• 57.

• 57.0

• 57.00

When subtracting integers the number of digits does not matter

4.57986 has more digits that 10.8 but 10.8 has more value

Multiple Choice

If I want to subtract 49.235 and 4.9235 which number goes on top?

• 49.235

• 4.9235

Multiple Choice

Subtract 82.7 - 4.59

• 72.29

• 78.29

• 77.11

• 78.11

Multiple Choice

subtract 10 and 2.542

• 8.542

• 7.458

• 8.458

• 7.568

When Multiplying Decimals

It is important to pretend the decimal is not there until the end.

Multiply regularly

Count how many digits are after the decimal. That is how many should be in your answer.

Multiple Choice

How many digits should be after the decimal in my answer if I multiply 45.899 and 4.999?

• 3

• 4

• 5

• 6

Multiple Choice

How many digits should be after the decimal in my answer if I multiply 2.95 and 3.2?

• 4

• 3

• 2

• 1

Multiple Choice

How many digits should be after the decimal in my answer if I multiply 200 and 5.72?

• 0

• 1

• 2

Multiple Choice

Multiply the following:

5.9 and 0.3

• 17.7

• 1.77

• .177

Multiple Choice

Multiply 15 and 0.9

• 135

• 1.35

• 13.5

Multiple Choice

Multiply 15.7 and 2.9

• 45.53

• 4.553

• .4553

Multiple Choice

12.931 + 9.67 = 

• 22.601

• 103.601

• 21.998

• 3.261

Multiple Choice

7.8 + 1.34 = 

• 9.14

• 2.12

• 6.46

• 8.42

Multiple Choice

8.42 - 5.14

• 328
• 3.28
• .328
• 32.8

Multiple Choice

15.8 - 9.67

• 613

• .613

• 6.13

• 61.3

Multiple Choice

0.2 x 0.8

• 16

• 0.16

• 0.016

• 1.6

Multiple Choice

7.13 x 5.5 

• 39.215

• 3.9215

• 392.15

• 3921.5

Multiple Choice

45.1 x 7

• 31.57

• 315.7

• 3,157

• 3.157

Multiple Choice

4 x 0.03

• 12

• 0.12

• 120

• 0.012

Multiple Choice

0.18 x 2

• 3.6

• 36

• 0.36

• 0.036

Multiple Choice

Vanessa downloaded two apps which were 17.73 kb total. If one app was 8.63 kb, how big was the other app?

• 26.36

• 9.1

• 9.70

• 25.6

Multiple Choice

 Jackie rode her bike around Capaha Park last week. The trail is 8.54 miles long. If she rode around the park 4 times last week, how many miles did she travel in all?

• 3.41 miles
• 8.54 miles
• 34.16 miles
• 341.6 miles

Multiple Choice

A weatherman was measuring the amount of rain two cities received over a week. City A received 3.74 inches while City B received 9.8 inches. How much rain did they get total?

• 12.82

• 13.54

• 11.74

• 13.36

Multiple Choice

Nancy was buying food for her birthday party. She bought a 52.93 oz bag of barbeque chips and a 79.6 oz bag of regular chips. How many ounces did she buy all together?

• 132.53

• 129.99

• 133.45

• 27.33

Multiple Choice

Can you guess the next letter in this series?

CYGTNLIT

• Y

• S

• G

• N

Multiple Choice

12.931 + 9.67 = 

• 22.601

• 103.601

• 21.998

• 3.261

Multiple Choice

Lisa had a budget of $100. She bought a shirt for $27.99 and a pair of pants for $25.99. How much money does she have left to buy other things?

• $46.12

• $45.02

• $46.02

• $53.98

Multiple Choice

18.7 x 6 = _

• 112.2

• 11.22

• 112.1

• 1.121

Multiple Choice

7.8 + 1.34 = 

• 9.14

• 2.12

• 6.46

• 8.42

Multiple Choice

8.42 - 5.14

• 328

• 3.28

• .328

• 32.8

Multiple Choice

4 x 0.03

• 12

• 0.12

• 120

• 0.012

Multiple Choice

 Last month, Shelly earned $15.38 for mowing lawns, $6.25 for cleaning her room, and $12.04 for other chores. How much did she earn last month?

• $33.76

• $33.67

• $33.00

• $34.64

Multiple Choice

One pound of strawberries cost $4.26. Anna buys 5 pounds of strawberries. How much will the strawberries cost?

• $2,130

• $21.30

• $21.03

• None of the above

Multiple Choice

Sarah jogged 4.8 miles each day for 22 days last month.  How many miles did Sarah jog in total?

• 110 miles

• 105.6 miles

• 88.16 miles

• 26.8 miles

Multiple Choice

Oliver bought 7 bags of candy. Each bag costs $1.50. How much money did he have to pay?

• $7.50

• $8.50

• $10.50

• $105.00

Multiple Choice

I went to Starbucks and decided to buy coffee for my coworkers. I purchased 4 coffees for $4.85 each. How much did I end up spending? 

• $20 

• $19.60

• $19.40

• $18.54

Multiple Choice

15.8 - 9.67

• 613

• .613

• 6.13

• 61.3

Multiple Choice

Lisa had a budget of $100. She bought a shirt for $27.99 and a pair of pants for $25.99. How much money does she have left to buy other things?

• $46.12

• $45.02

• $46.02

• $53.98

Multiple Choice

Tony ran 4.8 miles. James ran 2.75 miles. How much farther did Tony run?

• 2.15 miles

• 2.05 miles

• 7.55 miles

• 7.45 miles

Multiple Choice

22 + 4.57 + 8.9

• 34.47

• 35.47

• 13.69

• 13.59

Multiple Choice

A log weighing 4.8 pounds is split into 2 pieces. One piece weighs 1.25 pounds. How much does the other piece weigh?

• 3.45 pounds

• 3.55 pounds

• 6.05 pounds

• 6.15 pounds

Multiple Choice

50 - 8.32

• 41.68

• 42.68

• 41.78

• 41.88

Multiple Choice

18.7 x 6 = _

• 112.2

• 11.22

• 112.1

• 1.121

Multiple Choice

5.55 x 5.7 =

•  31.635

• 316.35

• 27.37

• 2.737

Multiple Choice

Tim's favorite peaches are $2.50 per pound at the local farmers’ market. She bought 3 pounds of the peaches. How much did she spend?

• $6.00

• $7.50

• $5.00

• $6.50

Multiple Choice

One kilometer is about .62 mile. It is 12 kilometers from Noah's house to tthe ice skating rink. About how many miles is it from Noah's house to the ice skating rink? 

• 74.4 miles

• 7.44 miles

• 0.744 miles

• 84.4 miles

Multiple Choice

Celeste bought 4.6m of fabric that cost $3.57 per meter. What was her total cost?

• $1.64

• $16.42

• $16.56

• $165.60

Multiple Choice

What is the correct location of the decimal point in the product?
2.39 x 4.37 = 104443

• 10.4443

• 104.443

• 10444.3

• 1.04443

Multiple Choice

How many digits will be behind the decimal in the product?
0.73 x 2.52

• 2

• 3

• 4

• 5

Multiple Choice

0.03 x 0.9

• 0.27

• 0.027

• 27

• 2.7

Multiple Choice

Nathan and his uncle paid $9.50 for tickets to a bike race. They bought one adult's ticket and one child's ticket. The adult's ticket cost $5.75. What was the cost of Nathan's ticket?

• 3.25

• $2.95

• $3.75

• $3.50

Multiple Choice

Which digit is in the tenths place of the following number?
43.56

• 4

• 3

• 5

• 6

Multiple Choice

What decimal is represented by the shaded part model?

• 0.07

• 0.7

• 7.5

• 0.75

Multiple Select

Select all decimals that are equivalent.

• .65

• 0.65

• 0.65000

• 0.065

• 6.5

Multiple Choice

4.85 + 4.3

• 9.15

• 8.63

• 8.98

• 10.3

Multiple Choice

10.57 - 4.25 =

• 6.32

• 6.33

• 8.72

• 14.82

Multiple Choice

Alex had 96 inches of rope. He cut off 15.67 inches. How many inches of rope remain?

• 81.13 in

• 80.33 in

• 90.33 in

• 15.31 in

Multiple Choice

How do you know where you put the decimal in a multiplication problem?

• line it up and bring it down

• move it up

• count the total digits behind the decimal in the problem and move it the same amount of spaces.

Multiple Choice

Where would the decimal go in this problem?

22.2 x 0.44 = 9768

• 97.68

• 0.9768

• 9.768

• 976.8

Multiple Choice

Where would the decimal go in this problem?

2.9 x 3.7 = 1073

• 10.73

• 1073

• 1.073

• 107.3

Multiple Choice

0.2 x 0.8

• 16

• 0.16

• 0.016

• 1.6

Multiple Choice

81.9 x 0.5 =

• 40.95 

• 409.5

• 40.02

• 400.2

Multiple Choice

A cat can jump five times as high as it is tall. How high could a cat jump if it is 16.4 centimeters tall?

• 82 cm
• 82.4 cm
• 90.4 cm
• 83.4 cm