Use place value to correctly lay out column addition
Lesson details
Learning outcome
I can use place value to lay out column addition correctly.
Key learning points
- The addends are written with the same value digits in the same column
- The sum is recorded underneath with the same value digits in the same column
- Zero is used to show that there are no 100s, 10s or 1s
Keywords
Addend - An addend is a number added to another.
Column addition - Column addition is a way of adding numbers by writing a number below another.
Common misconception
Pupils may forget to use zero to show that there are no 10s or 1s (e.g. in 60), or may use zero to show that there are no 100s when it is not needed (e.g. they may write 068).
Explain to pupils that zero is needed to show that there are no 10s or 1s in a 3-digit number although it isn't needed to show that there are no 100s. We don't write 68 as 068, so we do not do this with column addition either.
Teacher tip
In this session, pupils become familiar with setting out column addition with 2- and 3-digit numbers. Access to base ten blocks will be helpful throughout the lesson.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What are the addends in this column addition?
Q2.What is the sum in this column addition?
Q3.Jun represents the column addition as a bar model. Which bar model shows the correct position of 65?
Q4.Look at the column addition. Which statements are correct?
Q5.Which equations match the column addition?
Q6.Which equations match the column addition?
Assessment exit quiz
6 Questions
Q1.What is the value of the tens shown in this image?
Q2.What is represented by the digit 2 in 124?
Q3.Which calculation matches the base ten blocks representation?
Q4.Which calculation matches the base ten blocks representation?
Q5.Which calculation matches the column addition?
Q6.Which two numbers are being added in the column addition?
To help you plan your 3 maths lesson on: Use place value to correctly lay out column addition, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 3 maths lesson on: Use place value to correctly lay out column addition, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Column addition unit, dive into the full primary maths curriculum, or learn more about lesson planning.