Find the missing addend when adding two-digit numbers
I can find the missing addends when adding two-digit numbers.
Find the missing addend when adding two-digit numbers
I can find the missing addends when adding two-digit numbers.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Two-digit numbers can be partitioned to help find a missing digit or a missing addend.
- One equation can be used to help solve another equation.
- The patterns in equations can be used to help find a missing addend.
Keywords
Addend - Any of the numbers that are added together.
Digit - A single symbol used to make a numeral.
Common misconception
When finding a missing ones digit in an addend, children may confuse the tens and ones digits in the sum, thus adding to the ones to make the amount of the tens digit or vice versa.
Partition the addends into tens and ones so the place value of the digit that is missing is clear.
To help you plan your year 2 maths lesson on: Find the missing addend when adding two-digit numbers, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 2 maths lesson on: Find the missing addend when adding two-digit numbers, 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
Starter quiz
6 Questions
53 + 42
63 + 21
71 + 22
Exit quiz
6 Questions





