Find missing numbers between 20 and 100
I can use a range of strategies to help find missing numbers on a number track.
Find missing numbers between 20 and 100
I can use a range of strategies to help find missing numbers on a number track.
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Lesson details
Key learning points
- You can find missing numbers on number tracks in different ways.
- You can count forwards or backwards to find a number.
- You can look at the number before or after the missing number to help find it.
- You can find missing numbers on a number track by looking at the numbers it comes between.
- You can use the patterns in numbers to work out new facts.
Keywords
After - A number that is after another comes later when you count.
Before - A number that is before another comes earlier when you count.
Between - A number that is between two others is in the space that separates them.
Strategy - A method chosen to find something out.
Common misconception
Difficulty finding missing numbers when more than one number missing is from a number track.
Encourage and model how to visualise numbers using the numbers that can be seen.
To help you plan your year 1 maths lesson on: Find missing numbers between 20 and 100, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 1 maths lesson on: Find missing numbers between 20 and 100, 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 Pattern in counting from 20 to 100 unit, dive into the full primary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Aisha is counting forwards, she says 26. What number will she say next?
Q2.When the numbers become less, you know you are counting __________.
Q3.Sort these numbers in the order you would say if counting forwards.
Q4.Sort these numbers in the order you would say them if counting backwards.
Q5.Lucas is thinking of a number in the seventies. Use the clue he gives to work out the number.
Q6.Match the numbers to the correct decade.
47
56
65
74
Assessment exit quiz
6 Questions
Q1.Complete the following: 6 is __________ the number 7.
Q2.Which of these numbers is between 30 and 40 on the number track?
Q3. Complete the stem sentence. I know that the number after 3 is 4 so I know that the number after 23 is .
Q4.Match the numbers to the correct number that comes before it on a number track
46
48
50
Q5.Use the patterns within the decade to help you complete the following. The number after 23 is 24, so the number after 33 is ___..
Q6.Use the patterns on the number tracks to help you find out the number before 38.
