A representation is a way of showing a mathematical idea. Concrete objects, pictures and symbols can all be used to represent mathematics.

A mathematical process such as addition, subtraction, multiplication or division can be described as an operation.

An efficient strategy is a way of solving a problem that is accurate and can be done more quickly than others.

Solve problems with numbers with up to 3 decimal places

Maths

In this unit pupils will use their knowledge of decimal place value to convert between and compare metres and centimetres explaining that different lengths can be composed additively and multiplicatively.  In the future unit pupils will explain represent and compare whole pounds and pence.  They will convert quantities of money between pounds and pence and find change. 

In the prior unit pupils identified hundredths as part of a whole and described and represented hundredths as a decimal fraction. They compared and ordered decimal numbers with hundredths. In this unit pupils will use their knowledge of decimal place value to convert between and compare metres and centimetres explaining that different lengths can be composed additively and multiplicatively.

Use knowledge of decimals to solve problems in different contexts: length

Tick the known fact that could help you to solve: 0.004 + 0.005 = ?

The centre of the net should be 0.914 m tall.  At the moment, the height of the net is 0.921 m tall. How much should the net be lowered by? {{ }} mm

Which bar model represents the equation? 200 mm + 70 mm = ?

In one week, 0.046 m of rain fell. The next week, 0.015 m of rain fell. How much rain fell in total over the two weeks? Give your answer in metres.

One parcel weighs 0.4 kg and one parcel weighs 1.37 kg. How much do they weigh altogether? Give your answer in kilograms.  

Order these lengths from longest to shortest.

What is the difference between 0.524 and 0.529? 

What operation is required to find the missing value?

This lesson will soon be taken down.

Solve problems with numbers with up to 3 decimal places

Lesson outcome