Subtracting small numbers
Lesson details
Learning outcome
I can subtract numbers below 10 using efficient strategies.
Key learning points
- When the subtrahend is bigger than the ones value of the minuend, we will have to bridge through 10
- Composition of numbers to 10 allows us to partition numbers when we are subtracting.
- Composition of numbers to 10 allows us to bridge through ten when subtracting.
Keywords
Minuend - The minuend is the number being subtracted from.
Subtrahend - A subtrahend is a number subtracted from another.
Difference - The difference is the result after subtracting one number from another.
Common misconception
Difference can only be found by counting back.
Difference can be calculated by subtracting the subtrahend from the minuend or by counting between the subtrahend and the minuend.
Teacher tip
Pupils need to understand that subtraction is the inverse of addition. Addition facts can help with solving subtraction calculations. Tens frames, bar models and number lines can all be used to represent subtraction problems.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What is one less than 7?
Q2.What is the missing number in the equation?
Q3.Match the one less questions to the correct answer.
5
7
9
8
Q4.Which equation could Alex use to find the missing number in this bar model?
Q5.What is the answer to this equation?
Q6.Izzy has nine cherries. She eats three. How many cherries are left?
Assessment exit quiz
6 Questions
Q1.Complete: 5 + 4 = 9 so 9 − 5 =
Q2.Alex has six cherries. He eats three of them. How many are left?
Q3.What is 9 in this equation? 9 − 2 = 7
Q4.Which equation is represented by the number line?
Q5.What is the difference between 9 and 11?
Q6.Match each equation to the answer.
4
5
3
2
To help you plan your 3 maths lesson on: Subtracting small numbers, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 3 maths lesson on: Subtracting small 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 2 maths lessons from the Review strategies for adding and subtracting across 10 unit, dive into the full primary maths curriculum, or learn more about lesson planning.