Written Addition and Subtraction

KS3 Numeracy Year 8
This unit is part of Around ARE Consolidating Numeracy

Objectives

Day 1

  • Revise counting up to solve decimal subtraction.

KS3 Objective

  • Use the four operations, including formal written methods, applied to integers and decimals.

Day 2

  • Relate the addition and subtraction of decimals.

KS3 Objectives

  • Use the four operations, including formal written methods, applied to integers and decimals.
  • Recognise and use relationships between operations including inverse operations.

Day 3

  • Consolidate counting up to complete ‘missing- number’ problems.

KS3 Objectives

  • Use the four operations, including formal written methods, applied to integers and decimals.
  • Recognise and use relationships between operations including inverse operations.

Lesson Planning

Day 1

Check-up

Use mental strategies to add and subtract pairs of numbers with one decimal place.

Follow-up

Use ‘counting up’ on the number line to subtract pairs of numbers with one decimal place.

Day 2

Check-up

Use ‘counting on’ and number facts to add pairs of numbers with one decimal place.

Follow-up

Use ‘counting on’ on a number line to add pairs of numbers with one decimal place and ‘counting up’ to work out missing numbers in additions.

Day 3

Check-up

Use ‘counting up’ to solve missing number problems (whole numbers and amounts of money).

Follow-up

Use ‘counting up’ on the number line to solve missing number problems and find change.