Applying and consolidating: Related number facts and appropriate strategies

In this lesson, we will apply and consolidate our knowledge of deriving related number facts and most efficient strategies for calculating addition and subtraction equations. We will recap our key learning and apply that learning to answer different questions.

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.Mrs Crane has used the strategy round and adjust to solve the following equation: 3567 - 2005 = ... which number should she round?

1/5

Q2.Mrs Crane has used the strategy round and adjust to solve the following equation: 4997 - 1564 = ... which number should she round?

2/5

Q3.Which is the most efficient strategy to solve the following equation: 5006 - 4992 =

3/5

Q4.Which is the most efficient strategy to solve the following equation: 7012 - 6991 =

4/5

Q5.Which is the most efficient strategy to solve the following equation: 4547 - 1345 =

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!

Q1.Mrs Crane has used the strategy round and adjust to solve the following equation: 3567 - 2005 = ... which number should she round?

1/5

Q2.Mrs Crane has used the strategy round and adjust to solve the following equation: 4997 - 1564 = ... which number should she round?

2/5

Q3.Which is the most efficient strategy to solve the following equation: 5006 - 4992 =

3/5

Q4.Which is the most efficient strategy to solve the following equation: 7012 - 6991 =

4/5

Q5.Which is the most efficient strategy to solve the following equation: 4547 - 1345 =

5/5

Video

Play 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:

Applying and consolidating: Related number facts and appropriate strategies

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

Q1.Mrs Crane has derived some facts from the following equation: 10 + 3 = 13. Which of the following is NOT correct?

1/5

Q2.Mrs Crane has derived some facts from the following equation: 2 + 3 = 5. Which of the following is NOT correct?

2/5

Q3.Which is the most efficient strategy to use to solve the following equation: 2432 + 2438

3/5

Q4.Which is the most efficient strategy to use to solve the following equation: 5434 - 1996

4/5

Q5.Which is the most efficient strategy to use to solve the following equation: 4007 - 3991

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:

Applying and consolidating: Related number facts and appropriate strategies

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

Q1.Mrs Crane has derived some facts from the following equation: 10 + 3 = 13. Which of the following is NOT correct?

1/5

Q2.Mrs Crane has derived some facts from the following equation: 2 + 3 = 5. Which of the following is NOT correct?

2/5

Q3.Which is the most efficient strategy to use to solve the following equation: 2432 + 2438

3/5

Q4.Which is the most efficient strategy to use to solve the following equation: 5434 - 1996

4/5

Q5.Which is the most efficient strategy to use to solve the following equation: 4007 - 3991

5/5

Lesson summary: Applying and consolidating: Related number facts and appropriate strategies

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