Subtracting 2 digit numbers involving regrouping
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Lesson details
Key learning points
- In this lesson, we will learn how to subtract two digit numbers by using dienes cubes to represent our mental calculations.
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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.
In the following equation, how can you partition the 4 in order to use the "Make 10" strategy? 61-4=57
1 and 4
2 and 2
Q2.
Solve the following equation: 27-8=?
1
20
Q3.
Solve the following equation: 53-6=?
50
56
3 Questions
Q1.
Solve the following equation mentally: 18-10=?
0
10
Q2.
Solve the following by using a whole part model and the "Make 10" strategy. 32-15=?
15
22
Q3.
Solve the following equation by using a whole part model and the "Make 10" strategy. 45-16=?
28
35