# To add two-digit numbers and ones

In this lesson, we will recap what a two digit number is and then use this information to create number sentences by adding on ones.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.Which two numbers are equal to 20?

1/3

Q2.Is this part-whole model correct? Select true or false.

2/3

Q3.Which of these shows a total of 15 coins? Use these circles to help you pick the two numbers.

3/3

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.Which two numbers are equal to 20?

1/3

Q2.Is this part-whole model correct? Select true or false.

2/3

Q3.Which of these shows a total of 15 coins? Use these circles to help you pick the two numbers.

3/3

# 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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# To add two-digit numbers and ones - End of Lesson Quiz

Q1.What's the missing number?

1/4

Q2.What's the missing number?

2/4

Q3.What's the whole?

3/4

Q4.Whats the whole?

4/4

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# To add two-digit numbers and ones - End of Lesson Quiz

Q1.What's the missing number?

1/4

Q2.What's the missing number?

2/4

Q3.What's the whole?

3/4

Q4.Whats the whole?

4/4

# Lesson summary: To add two-digit numbers and ones

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Chair yoga