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Education Combinatorics Addition Counting Homework Combination Subtraction Mathematics Binary operations Elementary arithmetic | Addition (+) and subtraction (-) mental strategies (doing maths in your head) We teach children a range of different ways to add and subtract numbers. We want them to look for patterns and use them as much as they can. WAdd to Reading ListSource URL: www.det.nsw.edu.auDownload Document from Source WebsiteFile Size: 90,51 KBShare Document on Facebook |