Solve problems involving addition and subtraction
I can solve problems involving the addition and subtraction of two-digit numbers.
Solve problems involving addition and subtraction
I can solve problems involving the addition and subtraction of two-digit numbers.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- When solving problems, it must be decided whether to add or subtract in order to solve it.
- If the ones digits crosses the tens boundary, it shows that the bridge 10 strategy can be used.
- A number line can be drawn or visualised to help solve problems efficiently.
Keywords
Addition - Addition involves finding the total, or sum, by combining two or more numbers.
Subtraction - Subtraction involves taking one number away from another.
Bridge 10 - An addition or subtraction strategy where numbers are partitioned to reach the previous or next multiple of 10, so bonds to 10 can be used to calculate more efficiently.
Common misconception
When solving problems involving equations with more than two parts, children may automatically consider the numbers in the order given instead of considering the order they would find easier.
Encourage children to solve equations in different orders, comparing which they find easiest and articulating their thinking as they calculate.
To help you plan your year 2 maths lesson on: Solve problems involving addition and subtraction, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 2 maths lesson on: Solve problems involving addition and subtraction, 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 1 maths lessons from the Addition and subtraction of two 2-digit numbers unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
Starter quiz
6 Questions
Exit quiz
6 Questions
20 + 19 + 34 = ?
30 + 13 + 23 = ?
20 + 15 + 42 = ?
