Year 1
To find double and half within 20
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Lesson details
Key learning points
- In this lesson, we will double numbers by adding the same number to itself and halve even numbers by sharing equally between two groups.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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3 Questions
Q1.
What number would come next: 19, 18, 17 ___
15
20
Q2.
What number would come first: ___ 12, 10, 8, 6, 4, 2
10
11
Q3.
What is the missing number? 20, 18, ___, 14, 12, 10
17
19
4 Questions
Q1.
Use counting objects to find half 18:
10
8
Q2.
Use counting objects to find half 12:
10
2
Q3.
Use counting objects to find double 9:
19
20
Q4.
Use counting objects to find double 6:
16
3