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These colorful math posters display fact family triangles for sums 11-20 by addends 1-10. Thirty triangles, on fifteen pages, can be displayed seperately or in groups.
These posters are used to show students 4 different ways a number of objects can be represented; numeral, word form, ten frame and domino pattern. This supports students learning numbers based on the Common Core Standards for kindgarten. Common Core Math: K.CC.3, K.CC.4