Consolidating addition and subtraction of 2-digit numbers

In this lesson we will be revisiting adding and subtracting two 2-digit numbers and exploring mental strategies to help us solve problems.

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!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.3 + 2 + 4 = _____

1/5

Q2.4 + 6 + 2 = _____

2/5

Q3.5 + 6 + 4 = _____

3/5

Q4.Seven add two add three is equal to _____

4/5

Q5.Nine add one add six is equal to ____

5/5

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!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.3 + 2 + 4 = _____

1/5

Q2.4 + 6 + 2 = _____

2/5

Q3.5 + 6 + 4 = _____

3/5

Q4.Seven add two add three is equal to _____

4/5

Q5.Nine add one add six is equal to ____

5/5

Video

Play video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

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:

Consolidating addition and subtraction of 2-digit numbers

Quiz

Question 1

Question 2

Question 3

Question 4

Q1.What facts help me to know 34 + 52?

1/4

Q2.What facts help me to know 89 - 31?

2/4

Q3.67 - 32 = _____

3/4

Q4.74 + 15 = _______

4/4

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:

Consolidating addition and subtraction of 2-digit numbers

Quiz

Question 1

Question 2

Question 3

Question 4

Q1.What facts help me to know 34 + 52?

1/4

Q2.What facts help me to know 89 - 31?

2/4

Q3.67 - 32 = _____

3/4

Q4.74 + 15 = _______

4/4

Lesson summary: Consolidating addition and subtraction of 2-digit numbers

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This was the final lesson in the unit Addition and subtraction of 2-digit numbers.

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