The name we give to one part of one hundred equal parts.

When a whole is divided into one hundred equal parts, we can say one of those parts is one hundredth the size of the whole.

The hundredths column places the number of hundredths a given number has.

Describe and represent hundredths as a decimal number

Maths

In this unit pupils will identify hundredths as part of a whole and describe and represent hundredths as a decimal fraction. They will compare and order decimal numbers with hundredths. In the future unit pupils will use their knowledge of decimal place value to convert between and compare metres and centimetres and explain that different lengths can be composed additively and multiplicatively.

In the prior unit pupils described, represented and ordered tenths as a decimal fraction. They rounded a decimal number with tenths to the nearest whole number. In this unit pupils will identify hundredths as part of a whole and describe and represent hundredths as a decimal fraction. They will compare and order decimal numbers with hundredths.

Understand hundredths as parts of a whole and represent

When a number is made 100 times smaller, it is one ___________ the size of the whole. 

What number is one hundredth the size of 100?  

What number(s) are being represented on the number line?  

Here is a zoomed in picture of a 1 litre jug. How much water is there? Write your answer as a decimal.

One hundredth the size of one is {{ }}. Write your answer as a decimal number.

If 3 is made one tenth the size, and then one tenth the size again, what will the number become? 

Look at the image. What is the value the shaded part? 

What is the value of the 1 in this place value chart? 

One tenth can be written as 0.1 so 3 tenths can be written as {{ }}.

Which number is one tenth the size of 100? 

Tick the correct descriptions for this representation. 

This lesson will soon be taken down.

Describe and represent hundredths as a decimal number

Lesson outcome