Using the Make 10 strategy to subtract ones
Using the Make 10 strategy to subtract ones
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Lesson details
Key learning points
- In this lesson, we will learn how to use the "Make 10" Strategy to help us subtract ones from 2 digit numbers.
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.
Solve the following equation by partitioning 1 number: 26+15=
31
35
Q2.
Solve the following equation by partitioning both numbers: 49+25=
64
75
Q3.
Solve the following equation by using any strategy you think makes sense: 28+15=
38
44
3 Questions
Q1.
Do you need to use the "Make 10" strategy for the following equation? 13-3=?
Yes
Q2.
What known fact can help you solve the following equation? 15-4=?
15-5-10
5-1=4
Q3.
Solve the following equation using the "Make 10" strategy: 33-5=?
27
30