Year 2

Subtracting 2 digit numbers involving regrouping

Year 2

Subtracting 2 digit numbers involving regrouping

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Lesson details

Key learning points

  1. In this lesson, we will learn how to subtract two digit numbers by using dienes cubes to represent our mental calculations.

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.
In the following equation, how can you partition the 4 in order to use the "Make 10" strategy? 61-4=57
Correct answer: 1 and 3
1 and 4
2 and 2
Q2.
Solve the following equation: 27-8=?
1
Correct answer: 19
20
Q3.
Solve the following equation: 53-6=?
Correct answer: 47
50
56

3 Questions

Q1.
Solve the following equation mentally: 18-10=?
0
10
Correct answer: 8
Q2.
Solve the following by using a whole part model and the "Make 10" strategy. 32-15=?
15
Correct answer: 17
22
Q3.
Solve the following equation by using a whole part model and the "Make 10" strategy. 45-16=?
28
Correct answer: 29
35