Identify knowns and unknowns in addition equations

Maths

Use the additive relationship to rearrange addition equations

Use the additive relationship to rearrange subtraction equations

Develop understanding of the relationship between addition and subtraction

Identify knowns and unknowns in subtraction equations

Use the additive relationship to rearrange and solve equations

Solve problems using bar charts, pictograms and tables

Understand why the order of addition and subtraction steps can be chosen

Solve multi-step addition and subtraction problems efficiently

Solve one and two-step problems in different contexts

In this unit pupils will accurately and efficiently solve multi-step addition and subtraction problems. They will understand and explain how both addition and subtraction equations can be used to describe the same additive relationship In the future unit pupils will identify the addends and the sum in column addition They will use their knowledge of place value to correctly lay out column addition

In the prior unit pupils reviewed and secured previous knowledge of adding 3 addends, understanding they could be added in any order, bridging through 10. In this unit pupils will accurately and efficiently solve multi-step addition and subtraction problems. They will understand and explain how both addition and subtraction equations can be used to describe the same additive relationship.

In this unit pupils will accurately and efficiently solve multi-step addition and subtraction problems. They will understand and explain how both addition and subtraction equations can be used to describe the same additive relationship.

Understand additive relationships and apply them to rearrange equations

Which number represents the difference in this equation? 25 − 15 = 10

The result after subtracting one number from another. 

The total when numbers are added together.

What is the missing part in this bar model?

What is the value of the missing part in this bar model?

Which pairs of numbers have a difference of 3? 

How could you calculate the missing part in this bar model?

Which number in this equation is the sum? 100 = 20 + 80

Which of these are parts in an equation? 

What is the missing sum in this bar model?

What could the missing addends in this bar model be?

Which equations could be represented by the bar model?

Identify knowns and unknowns in addition equations

Lesson outcome