Addition and Subtraction.

This Half Term we have focused on Addition and Subtraction in Maths.
These short videos show you some of the strategies we have used.
You might like to watch the videos with your child and discuss how they would do each sum. Being able to explain how you do Maths is really important and helps you to really understand what you are doing.
The children use lots of different strategies to begin with and then we begin to think about which strategy is the most effective for which sum. For instance when we are adding a 1 digit number to a 2 digit number, then putting the largest number in our heads and counting on works, but it isn’t a good strategy to choose for adding bigger numbers. We are also encouraging the children to choose a different strategy to check their answers, or to use the bar model or inverse operation to check. ( if 27 – 15 = 12, then we can check our answer by doing 12 + 15 = 27)
Some of the strategies we use for addition –

Some of the strategies we use for subtraction –

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Keep practising all the skills you have learned in Maths by aiming to achieve your weekly Mathletics Certificate. This week EVERYONE in 2F achieved their certificate and we managed to get into the Top 10 classes on Friday morning.


ImageJames in 2H was our Mathlete of the Week, with an amazing score of overĀ 16,000 points. Well done also to Phoebe for her score of over 12,000 and to Ben, who scored over 13,000 points.







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