In KS2 Maths, kids learn about decimal numbers. In Year Five, they explore the value of digits in decimals, like tenths and hundredths. Plus, they practice adding and subtracting decimals. Rounding decimals up or down becomes a breeze, and they get comfy with sums involving decimal measurements such as metres/cm or £/pence.

Decimal numbers are smaller than one and come after a decimal point. They're like another way of writing fractions. For example, a quarter of pizza as a fraction is 1/4, but as a decimal, it's 0.25. The 2 in 0.25 means 2 tenths, and the 5 is 5 hundredths.

Can you spot the difference between tenths and hundredths? How about rounding a number to two decimal places? Test your decimal number skills by playing this quiz!

Quizzes: Your Ticket to Fun Learning. Dive In1.

What is the figure 6 worth in 0.26?

6 hundredths

6 ones

6 tenths

6 tens

Remember - tenths, hundredths, thousandths

2.

Which is the largest?

0.35

0.05

0.03

0.3

3.

What is the next number in the following sequence? 0.24, 0.26, 0.28, 0.3

0.32

0.35

1.3

1.32

The numbers are going up by 0.02, or ^{2}⁄_{100} every time

4.

How is 3.57 changed to 3.6?

Add 0.03

Subtract 0.3

Add 0.3

Subtract 0.03

Just like 357 + 3 = 360

3.57 + 0.03 = 3.6

3.57 + 0.03 = 3.6

5.

Which is a decimal fraction halfway between 2.1 and 2.2?

2.12

2.13

2.14

2.15

There are ten hundredths in a tenth so half of one tenth is 5 hundredths

6.

How is 0.07 changed to 0.02?

Add 0.5

Subtract 0.5

Subtract 0.05

Add 0.05

Just like 7 - 5 = 2

0.07 - 0.05 = 0.02

0.07 - 0.05 = 0.02

7.

Which is the decimal fraction equivalent to seven and forty two hundredths?

7.042

7.42

0.742

74.2

Forty two hundredths is equivalent to four tenths and two hundredths

8.

What does the digit 2 represent in 5.12?

2 tens

2 tenths

2 ones

2 hundredths

In decimals the first column after the ones is tenths and the second column is hundredths

9.

What is 8.5cm in mm?

8.5mm

85mm

850mm

8,500mm

There are 10mm in 1cm therefore we multiply by 10 to find the answer

10.

Which is the smallest of these numbers?

0.12

1.02

0.02

0.01