Decimals: Adding and Subtracting - Interactive Quizzes for Year 5 Maths

Question 1

Arrange the following decimals in order from smallest to largest: 0.34, 0.43, 0.29, 0.41.

Accepted Answer

0.29, 0.34, 0.41, 0.43

Answer

0.43, 0.41, 0.34, 0.29

Answer

0.29, 0.41, 0.34, 0.43

Answer

0.34, 0.29, 0.43, 0.41

Question 2

Calculate the product of 0.05 and 0.1.

Accepted Answer

0.005

Answer

0.05

Answer

0.5

Answer

5

Question 3

Subtract 0.32 from 0.75.

Accepted Answer

0.44

Answer

0.43

Answer

0.45

Answer

0.46

Question 4

What is the value of the digit 3 in the number 0.345?

Accepted Answer

3/100

Answer

3/10

Answer

3/1000

Answer

30

Question 5

In the number 2.58, what does the digit 5 represent?

Accepted Answer

Five hundredths

Answer

Five

Answer

Five tenths

Answer

Five thousandths

Question 6

Estimate the sum of 3.45 and 2.23.

Accepted Answer

6

Answer

5

Answer

7

Answer

8

Question 7

Divide 5 by 2.

Accepted Answer

1.5

Answer

2.5

Answer

3.5

Answer

4.5

Question 8

Which of the following is equivalent to 0.56?

Accepted Answer

56/100

Answer

56/10

Answer

560/1000

Answer

560/100

Question 9

What is the value of 0.5?

Accepted Answer

0.50

Answer

5

Answer

0.05

Answer

50

Question 10

Which number is the largest?

Accepted Answer

0.45

Answer

0.4

Answer

0.35

Answer

0.3

Question 11

Which method helps you estimate the sum of 0.23 and 0.45?

Accepted Answer

Rounding to the nearest tenth

Answer

Rounding to the nearest whole number

Answer

Multiplying both numbers by 10

Answer

Adding the two numbers without any estimation

Question 12

Which method is used to add decimals with different numbers of decimal places?

Accepted Answer

Line up the decimal points

Answer

Subtract the smaller number

Answer

Ignore the decimal points

Answer

Round the numbers

Question 13

What is the correct way to compare decimals?

Accepted Answer

Line up the decimal points and compare digit by digit

Answer

Round the numbers to the nearest whole number

Answer

Ignore the decimal points and compare the numbers

Question 14

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

Accepted Answer

0.6

Answer

0.5

Answer

0.7

Answer

0.8

Question 15

What is the sum of 3.4 and 5.6?

Accepted Answer

9.0

Answer

9.1

Answer

8.9

Answer

8.8

Question 16

Use mental methods to find the difference between 8.9 and 5.4.

Accepted Answer

3.5

Answer

2.5

Answer

5.5

Answer

4.5

Question 17

Select the correct written method for adding 6.34 and 2.57:

Accepted Answer

6.34
    +2.57
    --------
     8.91

Answer

6.34
    +2.57
    --------
     8.81

Answer

6.34
    +2.57
    --------
     9.01

Answer

6.34
    +2.57
    --------
     8.90

Question 18

Which method is most suitable for adding the decimals 3.456 and 7.89?

Accepted Answer

Written method

Answer

Mental method

Answer

Rounding

Answer

Estimation

Question 19

Find the sum of 3.25 and 1.75:

Accepted Answer

5.00

Answer

5.95

Answer

4.00

Answer

4.95

Question 20

A baker used 0.75 kg of flour to make a cake and 0.25 kg for cookies. How much flour did the baker use in total?

Accepted Answer

1.00 kg

Answer

1.25 kg

Answer

0.50 kg

Answer

0.95 kg

Question 21

Subtract 1.23 from 4.56:

Accepted Answer

3.33

Answer

5.79

Answer

2.33

Answer

3.23

Question 22

Sarah bought a book for £5.99 and a magazine for £2.50. If she paid with a £10 note, how much change did she receive?

Accepted Answer

£1.51

Answer

£2.51

Answer

£8.49

Answer

£7.49

Question 23

Estimate the sum of 2.8 and 4.2 by rounding to the nearest whole number:

Accepted Answer

7

Answer

8

Answer

10

Answer

5

Question 24

What is the difference between 6.45 and 3.2?

Accepted Answer

3.25

Answer

9.65

Answer

3.35

Answer

3.15

Question 25

A rectangle is 4.5 cm long and 2.3 cm wide. What is its perimeter?

Accepted Answer

13.6 cm

Answer

6.8 cm

Answer

10.35 cm

Answer

9.8 cm

Question 26

What do you get when you subtract 3.5 from 7.8?

Accepted Answer

4.3

Answer

11.3

Answer

3.3

Answer

4.2

Question 27

If you add 0.5 and 0.25, what's the answer?

Accepted Answer

0.75

Answer

1.00

Answer

0.50

Answer

0.20

Question 28

Apples cost £0.85 per kilogram. How much would 2.5 kilograms of apples cost?

Accepted Answer

£2.13

Answer

£1.65

Answer

£1.10

Answer

£2.65

Question 29

A baker uses 0.75 kg of flour for a cake and 0.25 kg for bread. How much flour does he use in total?

Accepted Answer

1.00 kg

Answer

0.25 kg

Answer

1.25 kg

Answer

0.50 kg

Question 30

What's the difference between 3.45 and 1.28?

Accepted Answer

2.17

Answer

2.23

Answer

1.17

Answer

4.73

Question 31

A toy car costs £5.99 and a toy truck costs £7.45. How much more expensive is the truck?

Accepted Answer

£1.46

Answer

£0.54

Answer

£1.54

Answer

£2.54

Question 32

Which decimal is equal to the fraction 3/4?

Accepted Answer

0.75

Answer

0.25

Answer

0.34

Answer

0.43

Question 33

About how much is 2.34 plus 1.87?

Accepted Answer

4.2

Answer

3.2

Answer

6.2

Answer

5.2

Question 34

Which of these decimals is the biggest: 0.65, 0.7, 0.58, 0.6?

Accepted Answer

0.7

Answer

0.58

Answer

0.6

Answer

0.65

Question 35

A recipe calls for 0.5 kg of apples and 0.25 kg of pears. How many kilograms of fruit are needed in total?

Accepted Answer

0.75 kg

Answer

0.50 kg

Answer

1.00 kg

Answer

0.25 kg

Question 36

A cyclist travels 12.5 km on Monday and 10.8 km on Tuesday. How many kilometers did he travel in total?

Accepted Answer

23.3 km

Answer

22.3 km

Answer

24.3 km

Answer

13.3 km

Question 37

Sarah had £15.50 and spent £7.85 on a book. How much money does she have left?

Accepted Answer

£7.65

Answer

£8.65

Answer

£7.55

Answer

£8.55

Question 38

What is the difference between 4.00 and 1.75?

Accepted Answer

2.25

Answer

5.75

Answer

3.25

Answer

1.25

Question 39

Which of the following is equivalent to 0.56?

Accepted Answer

56/100

Answer

560/1000

Answer

0.506

Answer

65/1000

Question 40

Calculate: 3.45 + 2.78

Accepted Answer

6.23

Answer

6.32

Answer

5.93

Answer

6.13

Question 41

Subtract 1.25 from 4.67:

Accepted Answer

3.42

Answer

3.52

Answer

2.42

Answer

4.52

Question 42

Estimate the sum of 0.34 and 0.58:

Accepted Answer

0.9

Answer

0.8

Answer

1.2

Answer

1.0

Question 43

Which of the following is the correct method for adding 0.45 and 0.27?

Accepted Answer

Align the decimal points and add zeros as needed.

Answer

Multiply the numbers together.

Answer

Add the digits in each column separately.

Answer

Round both numbers to the nearest whole number.

Question 44

Calculate: 2.85 - 1.47:

Accepted Answer

1.38

Answer

1.48

Answer

0.38

Answer

2.38

Question 45

Estimate the difference between 1.76 and 0.89:

Accepted Answer

0.9

Answer

1.2

Answer

1.0

Answer

0.8

Question 46

Which of the following is the correct method for subtracting 1.23 from 3.56?

Accepted Answer

Adjust the decimal places and subtract.

Answer

Multiply the numbers together.

Answer

Add the numbers together.

Answer

Round both numbers to the nearest whole number.

Question 47

Calculate: 4.2 - 1.54:

Accepted Answer

2.66

Answer

1.66

Answer

2.56

Answer

3.66

Question 48

Estimate the sum of 0.67 and 0.48:

Accepted Answer

1.2

Answer

1.3

Answer

1.1

Answer

1.4