Subtracting 2 digit numbers involving regrouping

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

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.In the following equation, how can you partition the 4 in order to use the "Make 10" strategy? 61-4=57

1/3

Q2.Solve the following equation: 27-8=?

2/3

Q3.Solve the following equation: 53-6=?

3/3

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.In the following equation, how can you partition the 4 in order to use the "Make 10" strategy? 61-4=57

1/3

Q2.Solve the following equation: 27-8=?

2/3

Q3.Solve the following equation: 53-6=?

3/3

Video

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Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Subtracting 2 digit numbers involving regrouping

This quiz will help you assess what you have learned in this lesson.

Q1.Solve the following equation mentally: 18-10=?

1/3

Q2.Solve the following by using a whole part model and the "Make 10" strategy. 32-15=?

2/3

Q3.Solve the following equation by using a whole part model and the "Make 10" strategy. 45-16=?

3/3

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Subtracting 2 digit numbers involving regrouping

This quiz will help you assess what you have learned in this lesson.

Q1.Solve the following equation mentally: 18-10=?

1/3

Q2.Solve the following by using a whole part model and the "Make 10" strategy. 32-15=?

2/3

Q3.Solve the following equation by using a whole part model and the "Make 10" strategy. 45-16=?

3/3

Lesson summary: Subtracting 2 digit numbers involving regrouping

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