New
New
Year 1

Add and subtract two from even numbers within 10

I can add and subtract two from even numbers within 10

New
New
Year 1

Add and subtract two from even numbers within 10

I can add and subtract two from even numbers within 10

Lesson details

Key learning points

  1. Adding two to an even number gives the even number after.
  2. Subtracting two from an even number gives the even number before.
  3. When we count forwards in even numbers, we add two more each time.
  4. When we count backwards in even numbers, we subtract two each time.

Keywords

  • Odd - Any integer (not a fraction) that cannot be divided exactly by 2

  • Even - Any integer that can be divided exactly by 2 is an even number. The last digit is 0, 2, 4, 6 or 8

  • Two more

  • Two less

Common misconception

Children may incorrectly identify the even number 'before' or 'after' the one given.

Provide practice in the form of missing number problems where children must identify the even numbers before or after one given. Do this until fluent. Initially, allow children to use a number line. Remove this scaffold once feeling more confident.

The sequence of steps in this lesson are the same as those in that for adding and subtracting one, except now we are using children's knowledge of even numbers 'before' and 'after'. Find time to practise counting forwards and backwards in even numbers until children are fluent in this pattern.
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).

Lesson video

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6 Questions

Q1.
Look at the part-part-whole model. If 10 is the whole and 3 is a part, what is the missing part? .
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Correct Answer: 7, seven
Q2.
Which subtraction equations could the part-part-whole model show?
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Correct answer: 10 - 4 = 6
4 - 6 = 10
6 - 4 = 10
Correct answer: 10 - 6 = 4
Q3.
Match the numbers that show one less.
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Correct Answer:One less than 7 is,6

6

Correct Answer:One less than 9 is ,8

8

Correct Answer:One less than 5 is,4

4

Q4.
Which numbers are consecutive?
Correct answer: 4 and 5
6 and 8
Correct answer: 10 and 9
Q5.
Sam has one pound in her pocket. Jacob has five pounds. How much money do they have altogether? pounds.
Correct Answer: 6, 6 pounds, six
Q6.
Jacob wants to read 8 pages of his book. He has read 1 page already. How many more pages does he need to read?
Correct Answer: 7, seven

6 Questions

Q1.
Which of these numbers are even numbers?
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Correct answer: 2
Correct answer: 8
7
Q2.
What is the next even number after 4?
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Correct Answer: 6, six
Q3.
When counting backwards, what is the even number before 10?
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Correct Answer: 8, eight
Q4.
Which representation shows that 2 has been added to find the next even number?
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Correct Answer: An image in a quiz
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An image in a quiz
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Q5.
First, Sam had 6 pencils. Then, Jacob took 2 of them. Now, Sam has pencils.
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Correct Answer: 4, four
Q6.
4 + = 6
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Correct Answer: 2, two