Calculation: Addition

Addition is useful to total up several amounts. For instance a shopping basket or a timesheet. It is the opposite of subtraction.

Quick tips for tutors

Addition includes:

  • A one-minute video designed to illustrate purpose and context of the topic with particular examples
  • May be used to introduce the topic in class and stimulate discussion around the examples shown
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Downloadable Factsheets

Entry 3 - Addition

How to use different methods for addition.

Entry 3 - Addition

Entry 3 - Hundreds, tens and ones

How to add by separating hundreds, tens and ones.

Entry 3 - Hundreds, tens and ones

Entry 3 - Reminders to help you add

Reminders about place value and order for help with mental addition.

Entry 3 - Reminders to help you add

Entry 3 - Key words for mental addition

Gives the definition of the words you will come across when dealing with addition calculations.

Entry 3 - Key words for mental addition

Entry 3 - Splitting up numbers

How to add by splitting up or partitioning numbers.

Entry 3 - Splitting up numbers

Entry 3 - 'Shared': five ways to add (and subtract) in your head

How to remember different methods for adding and subtracting in your head, using the mnemonic 'Shared'.

Entry 3 - 'Shared': five ways to add (and subtract) in your head

Level 1 - Rounding addition

How to add by rounding numbers and then adjusting.

Level 1 - Rounding addition

Level 1 - Rounding addition methods and examples

Shows how to add numbers by using rounding methods, and gives examples.

Level 1 - Rounding addition methods and examples

Downloadable Worksheets

Entry 1 & 2 - Calculating journey times

An activity in calculating journey times.

Entry 1 & 2 - Calculating journey times

Entry 3 - Doubling

Practise carrying out addition using the doubling method.

Entry 3 - Doubling

Entry 3 - Addition additives

Questions for you to check your understanding of addition.

Entry 3 - Addition additives

Entry 3 - Hundreds, tens and ones

Practise addition using knowledge of number bonds to 100.

Entry 3 - Hundreds, tens and ones

Entry 3 - Addition by splitting up numbers

Practise addition using the splitting up numbers method.

Entry 3 - Addition by splitting up numbers

Entry 3 - Empty number lines

Practise carrying out addition using empty number lines.

Entry 3 - Empty number lines

Level 1 - Correcting addition errors

Correcting addition errors exercise in spotting deliberate errors.

Level 1 - Correcting addition errors

Level 1 - Rounding

Questions for you to practise addition using rounding.

Level 1 - Rounding
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