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Liz Golden
Addition and Subtraction Bingo (within 20)
年级：
1st Grade,
2nd Grade
科目：
Math
标准：
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers. (CC.2.OA.2.)
学生说明
1. Roll the die and solve the sum or difference.
2. Cover that number.
3. The first player to get five in a row wins!
老師便條 (學生不可見)
Only addition and subtraction within 20
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