New
New
Year 1
Add and subtract one from any number
I can add and subtract one from any number.
New
New
Year 1
Add and subtract one from any number
I can add and subtract one from any number.
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Lesson details
Key learning points
- Adding one gives one more.
- Subtracting one gives one less.
Keywords
One more - The number after a given number is one more than it.
One less - The number before a given number is one less than it
Common misconception
Children may struggle to count on from, or back from, a given number.
Encourage automaticity with the counting sequence through regular practice. At times, pause so that children need to predict the number that is one more/less. Initially, you may need to model silently counting from one through to the given number.
Reinforce the ideas of one more and one less within counting rhymes or highlight during daily tasks within the classroom.
Teacher tip
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Starter quiz
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6 Questions
Q1.
Which of these numbers are odd numbers?
6
8
Q2.
Match the pairs of numbers that sum to 10
6
1
3
8
Q3.
Which expressions do not sum to 10?
4 + 6
1 + 9
Q4.
Use your number pairs to solve the subtraction equations.
6
3
8
5
Q5.
10 is the whole. 4 is the subtrahend. What is the difference?
Q6.
Use the image to find the missing subtrahend. 10 - = 3
Exit quiz
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6 Questions
Q1.
Match the equation to the total.
5
8
6
10
Q2.
The picture shows 6 pencils and one more. Which equation matches the picture?
6 - 1 = 5
6 + 1 = 5
Q3.
What equation is shown on the number line?
7 + 1 = 8
7 - 1 = 8
Q4.
Match the parts of the sentence.
one more
one less
Q5.
Match the equation to the answer.
3
6
7
9
Q6.
There are 8 flowers in the garden. 1 flower is pink. How many flowers are not pink?