In this lesson, we will look at addition equations and decide the best and most efficient strategy we could use to solve them.

#### 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.What's the same? What's different? 364 + 302 = 666 and 374 + 302 = 676

1/5

Q2.What's the same? What's different? 764 - 204 = 560 and 754 - 204 = 550

2/5

Q3.What's the same? What's different? 3672 + 1474 = 5146 and 3972 + 1474 = 5446

3/5

Q4.If... 362 + 205 = 567 then... 262 + 205 = ?

4/5

Q5.If... 751 - 303 = 448 then... 741 - 303 = ?

5/5

#### 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.What's the same? What's different? 364 + 302 = 666 and 374 + 302 = 676

1/5

Q2.What's the same? What's different? 764 - 204 = 560 and 754 - 204 = 550

2/5

Q3.What's the same? What's different? 3672 + 1474 = 5146 and 3972 + 1474 = 5446

3/5

Q4.If... 362 + 205 = 567 then... 262 + 205 = ?

4/5

Q5.If... 751 - 303 = 448 then... 741 - 303 = ?

5/5

# 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:

Using what we have learnt today, can you answer the following questions?

Q1.Mrs Crane is using the strategy near doubles to solve the following equation: 3014 + 3007 = ... Which of the following near doubles should she use to help her calculate the answer?

1/5

Q2.Mrs Crane is using the strategy near doubles to solve the following equation: 4136 + 4122 = ... Which of the following near doubles should she use to help her calculate the answer?

2/5

Q3.Mrs Crane is using the strategy round and adjust to solve the following: 4543 + 3003 = ... Which of the numbers in the equation should she use to round and adjust?

3/5

Q4.Mrs Crane is using the strategy round and adjust to solve the following: 3783 + 2998 = ... Which of the numbers in the equation should she use to round and adjust?

4/5

Q5.Using the strategy round and adjust, add the following three numbers together: 4001 + 3997 + 2005 =

5/5

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

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

Using what we have learnt today, can you answer the following questions?

Q1.Mrs Crane is using the strategy near doubles to solve the following equation: 3014 + 3007 = ... Which of the following near doubles should she use to help her calculate the answer?

1/5

Q2.Mrs Crane is using the strategy near doubles to solve the following equation: 4136 + 4122 = ... Which of the following near doubles should she use to help her calculate the answer?

2/5

Q3.Mrs Crane is using the strategy round and adjust to solve the following: 4543 + 3003 = ... Which of the numbers in the equation should she use to round and adjust?

3/5

Q4.Mrs Crane is using the strategy round and adjust to solve the following: 3783 + 2998 = ... Which of the numbers in the equation should she use to round and adjust?

4/5

Q5.Using the strategy round and adjust, add the following three numbers together: 4001 + 3997 + 2005 =

5/5

# Lesson summary: Choosing appropriate addition strategies

## Time to move!

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

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga