A resource I've made to help the children in my class recognise and use the pattern 1 more, 1 less, 10 more and 10 less on a 100 square. In addition with their knowledge of partitioning this helps them add and subtract 2 digit numbers.
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Planning to print and laminate this on A3 to display in my classroom. Thank you, very useful!
Think this could be good for quick revision
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