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Lesson 2: Introducing Expanded Column Multiplication

Starter

Begin by marking the questions you did yesterday. Go through any you didn't understand with someone at home or wait until your teacher calls you and ask them explain it to you.

                        

Chilli Challenge answers

Main

Yesterday, we looked at arrays method, repeated addition and grid method to multiply numbers together. 

Talk to your grown up about how you found it.  Was there anything you found challenging? If your grown up cannot help you, write down what you found difficult and talk to your teacher about it when they call in the week.

 

Below is a brilliant video of Mrs Qureshi modelling how to use Grid Method to Multiply, please watch this as a refresher.

Grid Method (2 Digit x 1 Digit)

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Grid Method (2 Digit x 2 Digit)

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Today we are going to look at a different method to use when multiplying, Expanded Column method. Below are a video and PowerPoint which explains and models how to multiply using Expanded Column Method.

Expanded Column Method (2 digit x 1 digit)

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Expanded Column Method (2 Digit x 2 Digit)

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Activity

For today's activity, please pick two numbers from either column, put them into a number sentence and multiply them using either Grid Method or Expanded Column Method.

Do at least 8 questions and if you would like to do more - even better! Remember the more you practise the better you will get.

 

When you have finished, use a calculator to check your answers. If you are confused with anything, ask someone at home to try and help you to spot where you have gone wrong. Use the videos to help you go over the strategy again.

Multiplication Square

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