Decimals: Understanding Decimal Numbers and Operations

Question 1

Convert the decimal 0.05 to a percentage.

Accepted Answer

5%

Answer

0.5%

Answer

50%

Answer

0.05%

Question 2

Arrange these decimals from smallest to largest: 0.12, 0.14, 0.16

Accepted Answer

0.12, 0.14, 0.16

Answer

0.16, 0.14, 0.12

Answer

0.14, 0.12, 0.16

Answer

0.14, 0.16, 0.12

Question 3

Which of the following is equivalent to 0.75, written as a fraction?

Accepted Answer

3/4

Answer

7/5

Answer

5/4

Answer

4/5

Question 4

Round 0.789 to the nearest hundredth.

Accepted Answer

0.79

Answer

0.78

Answer

0.80

Answer

0.70

Question 5

Calculate the product of 0.5 and 0.2.

Accepted Answer

0.01

Answer

0.1

Answer

0.001

Answer

0.11

Question 6

Which of the following numbers is the greatest?

Accepted Answer

0.41

Answer

0.35

Answer

0.39

Answer

0.40

Question 7

Add the decimals 0.54 and 0.67.

Accepted Answer

1.21

Answer

1.11

Answer

1.31

Answer

1.41

Question 8

What is the value of the digit 3 in the decimal 0.357?

Accepted Answer

3/100

Answer

3/10

Answer

3/1000

Answer

3/10000

Question 9

Round 0.6789 to two decimal places.

Accepted Answer

0.68

Answer

0.67

Answer

0.69

Answer

0.70

Question 10

Which of these decimals is the greatest?

Accepted Answer

0.75

Answer

0.65

Answer

0.67

Answer

0.59

Question 11

Which digit has the value of 0.05 in the number 2.547?

Accepted Answer

0.05

Answer

5

Answer

0.5

Answer

0.005

Question 12

Find the difference between 1.25 and 0.78.

Accepted Answer

0.47

Answer

0.46

Answer

0.48

Answer

0.49

Question 13

Which of the following is NOT a decimal?

Accepted Answer

1/2

Answer

0.5

Answer

0.05

Answer

0.25

Question 14

Convert the fraction 3/4 to a decimal.

Accepted Answer

0.75

Answer

0.34

Answer

0.5

Answer

0.25

Question 15

What is the value of 0.5 + 0.25?

Accepted Answer

0.75

Answer

0.70

Answer

0.80

Answer

0.85

Question 16

Subtract 0.15 from 0.5.

Accepted Answer

0.35

Answer

0.25

Answer

0.30

Answer

0.40

Question 17

Which of the following is equivalent to 0.4 as a fraction?

Accepted Answer

1/4

Answer

1/8

Answer

1/2

Answer

2/5

Question 18

What is the result of multiplying 0.2 by 0.5?

Accepted Answer

0.04

Answer

0.10

Answer

0.15

Answer

0.20

Question 19

Which of the following is the smallest?

Accepted Answer

0.01

Answer

0.11

Answer

0.1

Answer

0.05

Question 20

What fraction is equal to half?

Accepted Answer

1/2

Answer

2/5

Answer

3/4

Answer

1/3

Question 21

Which of the following is the same as 100?

Accepted Answer

10000/100

Answer

1000/10

Answer

100000/1000

Answer

1000000/10000

Question 22

What fraction is equal to one thousandth?

Accepted Answer

1/1000

Answer

1/10

Answer

1/100

Answer

1/10000

Question 23

Which of the following is equivalent to 0.45?

Accepted Answer

45 hundredths

Answer

45 tenths

Answer

4.5 tenths

Answer

4.5 hundredths

Question 24

Which of the following is NOT a decimal?

Accepted Answer

one half

Answer

0.12

Answer

0.99

Answer

1

Question 25

What is the value of 0.5 multiplied by 0.2?

Accepted Answer

0.01

Answer

1

Answer

0.1

Answer

0.001

Question 26

A storekeeper has 2.5 kilograms of flour. He wants to divide it equally into 4 bags. How much flour will be in each bag?

Accepted Answer

0.625 kg

Answer

0.5 kg

Answer

0.75 kg

Answer

1 kg

Question 27

Which of the following decimals is equal to the fraction three-fourths?

Accepted Answer

0.75

Answer

0.25

Answer

3.4

Answer

0.34

Question 28

Arrange these decimals from smallest to largest: 0.3, 0.03, 0.33, 0.13

Accepted Answer

0.03, 0.13, 0.3, 0.33

Answer

0.03, 0.3, 0.13, 0.33

Answer

0.33, 0.3, 0.13, 0.03

Question 29

What does the digit '6' represent in the decimal number 2.56?

Accepted Answer

Six hundredths

Answer

Six tens

Answer

Six tenths

Answer

Six units

Question 30

What is 4.72 rounded to the nearest tenth?

Accepted Answer

4.7

Answer

5.0

Answer

4.72

Answer

4.8

Question 31

Over two days, Tom runs 2.5 kilometers on Monday and 3.25 kilometers on Tuesday. How many total kilometers does he run?

Accepted Answer

5.75 km

Answer

6 km

Answer

5.5 km

Answer

5.25 km

Question 32

Which fraction is equivalent to 0.05?

Accepted Answer

5/100

Answer

1/20

Answer

5/10

Answer

1/5

Question 33

A carpenter has a piece of wood that is 1.8 meters long. If he cuts off 0.65 meters, how much wood is left?

Accepted Answer

1.15 meters

Answer

1.1 meters

Answer

1.75 meters

Answer

1.25 meters

Question 34

What is the decimal equivalent of the fraction 3 out of 5?

Accepted Answer

0.6

Answer

0.8

Answer

0.9

Answer

0.4

Question 35

Which of the following decimals is equivalent to 0.55?

Accepted Answer

55/100

Answer

5/10

Answer

5.5

Answer

55%

Question 36

Which of the following is NOT a property of decimals?

Accepted Answer

Decimals are always whole numbers.

Answer

Decimals can be added and subtracted.

Answer

Decimals can be represented as fractions.

Answer

Decimals can be compared.

Question 37

Which fraction is equivalent to the decimal 0.75?

Accepted Answer

3/4

Answer

1/2

Answer

2/3

Answer

1/5

Question 38

What is the sum of 0.12 and 0.55?

Accepted Answer

0.67

Answer

0.57

Answer

0.87

Answer

0.77

Question 39

What is the difference between 0.8 and 0.25?

Accepted Answer

0.55

Answer

0.45

Answer

0.75

Answer

0.65

Question 40

Which of these decimals is the largest?

Accepted Answer

0.9

Answer

0.85

Answer

0.8

Answer

0.89

Question 41

What is the product of 0.5 and 0.2?

Accepted Answer

0.1

Answer

0.05

Answer

0.25

Answer

0.01

Question 42

A rectangular garden is 5.2 meters long and 3.5 meters wide.  What is the area of the garden?

Accepted Answer

18.2 m²

Answer

19.2 m²

Answer

20.2 m²

Answer

17.2 m²

Question 43

A bottle holds 1.5 liters of juice. If 0.4 liters is poured into a glass, how much juice is left in the bottle?

Accepted Answer

1.1 liters

Answer

1.3 liters

Answer

0.9 liters

Answer

1.7 liters

Question 44

Which of these shows the decimal 0.352 in expanded form?

Accepted Answer

0.3 + 0.05 + 0.002

Answer

3 + 5 + 2

Answer

0.30502

Answer

0.03502

Question 45

Which of these is the word form of the decimal 4.56?

Accepted Answer

four point five six

Answer

four five six hundredths

Answer

four and five six

Answer

four fifty six