 Community Primary School

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# Maths

Today we are going to be exploring subtraction. Again, there are three options to choose from. Option one is if you found subtraction using the column method very tricky – you will be using the column method to subtract but will not need to exchange at all. Option two is if you found it a little tricky and feel like you might need a bit more practise – you will be subtracting using the column method and will be exchanging numbers between the columns. Option three is if you found column subtraction very easy – you have some problems from the nrich website to explore and have a go at.

Option 1

Have a look at the video below, solve the problems in the video and on the worksheet. Make sure you listen carefully to the explanations of the questions to help you remember how to answer them. Answer the sections of the worksheet when the video tells you to and remember to mark your answers as you go so you can spot any problems when you get to them.

Remember to start in the ones column and take the bottom number away from the top number.

## Aut3.8.1 - Subtract a 3-digit number from a 3-digit number - no exchange.mp4 Option 2

Have a look at the video below, solve the problems in the video and on the worksheet. Make sure you listen carefully to the explanations of the questions to help you remember how to answer them. Answer the sections of the worksheet when the video tells you to and remember to mark your answers as you go so you can spot any problems when you get to them.

Remember to start in the ones column and take the bottom number away from the top number. If the bottom number is bigger than the top number you will need to exchange (move one ten into the ones column to add ten to the number you are subtracting from, or one hundred into the tens column to add one hundred to the number you are subtracting from).

## Aut3.8.2 - Subtract a 3-digit number from a 3-digit number - exchange.mp4 Option 3

Have a look at the links below and explore the subtraction problems and activities. Can you learn anything new? Can you spot any patterns? Have a go at the different activities and see how far you can take your learning!

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