Practice adding and subtracting within 20 using a Double 10-frame & number line. Represent a teen number using a number bond to solve a Mystery Math Mistake. Use Notice and Wonder with a marble game ...
Learn how you can use the same numbers to create different maths facts. What are number bonds? Learn about the number bonds to 10 and 20. Add by making 10 Learn about bridging through ten, which can ...
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