SISD
Addition Facts with Sums up to 20 or Related Subtraction Facts. 3rd Round: 3-second limit to respond. Addition Facts with Sums up to 20 or Related Subtraction Facts. 4th Round: 5-second limit to respond. 2-Step number sentences with mixed addition and subtraction facts Examples: 3 + 2 + 7, 5 - … ................
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