10-7=, 3, 13, 20, 20-10=, 13, 9, 10, 9+9 =, 20, 18, 0, 6+7=, 13, 12, 10, 12-12=, 0, 20, 13, 3+3 = , 9, 6, 0, 12+5=, 17, 12, 16, 8+8=, 10, 0, 16, 15+5=, 20, 15, 10, 18+1=, 19, 20, 17, 10-5=, 5, 15, 13, 18-8=, 14, 10, 16, 13-5=, 9, 8, 18, 17-10=, 7, 17, 20, 20-19=, 5, 8, 1.
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Adding and Subtracting within 20 (Fluency)
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