Compare two-digit numbers
Lesson details
Learning outcome
I can compare two-digit numbers.
Key learning points
- When comparing two-digit numbers, the number of tens can be compared to find the greater number.
- When the tens in the numbers are the same, the greater number can be found by comparing the number of ones.
- The greater number can also be found using a number line.
- The greater number comes further in the counting sequence, so it will be further along the number line.
Keywords
Compare - You compare to find out what is the same and what is different. You can compare numbers to find out if one is greater than or less than another.
Greater than - Is larger in value or size.
Less than - Is smaller in value or size, referring to an abstract or continuous number.
Common misconception
Children may think that they must see both the tens and ones in a two-digit number to compare them. They may also reverse the tens and ones and compare the ones first.
Ensure that numbers with the ones digit hidden are given to compare so that children can appreciate the relative size of the numbers. Use practical equipment and stem sentences to consolidate understanding of the structure of two-digit numbers.
Teacher tip
Ensure that the children can confidently identify and represent two-digit numbers based on cardinality (e.g. base 10) and ordinality (e.g. number lines/Gattegno charts), as these skills underpin the work in this lesson.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Which of the following has more tens than 80?
Q2.When counting, which decade would you say last?
Q3.I’m thinking of a number. It is in the seventies, and it has 6 ones. My number is
Q4.Put these numbers in the order you would say if counting forwards. 74, 76, 75, 73
Q5.Use the correct symbol <, > or = to complete the following correctly. 7 ___ 9
Q6.Which of the following is the missing number. 60 > ___
Assessment exit quiz
6 Questions
Q1.Which of these numbers is greater than 54?
Q2.34 < 67
Which of these numbers will be further along the number line?
Q3.Complete the stem sentence. I know 68 is less than 82 because __________
Q4.Which of these numbers is less than 62?
Q5.Fill in the missing number. Which of the following could be the missing number?
___ > 85
Q6.Which of the following is incorrect?
To help you plan your 2 maths lesson on: Compare two-digit numbers, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 2 maths lesson on: Compare 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 Comparing, ordering and partitioning 2-digit numbers unit, dive into the full primary maths curriculum, or learn more about lesson planning.