Use knowledge of column addition and subtraction to calculate with decimals: tenths and hundredths

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

Complete the column addition and write in the answer. 

Complete the column subtraction and write in the answer. 

How many regroupings does this calculation require? 

Which calculation represents this bar model? 

Look at the column addition. What is the missing digit? 

Look at the column subtraction. What is the missing digit? 

Tick all the expressions that would make or bridge 10. 

Order the expressions from the smallest amount to the largest amount.  

Tick the calculations that require a regrouping. 

The number of ones that have been regrouped is incorrect. 

The decimal points are not lined up correctly. 

Tick the correct explanation of the mistake that has been made. 

This lesson will soon be taken down.

Use knowledge of column addition and subtraction to calculate with decimals: tenths and hundredths

Lesson outcome