三十以内加法
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2 + 14 = 21 +
3 = 12 + 3 = 11 + 3 = 16 + 5 = 11 + 6 =
4 + 11 = 12 + 4 = 10 + 4 =
13 + 2 = 24 + 3 = 15 + 6 =
14 + 3 = 5 + 6 = 4 + 7 = 7 + 8 = 8 + 3 = 13 + 2 = 7 + 11 = 13 + 4 = 11 + 5 = 15 + 2 = 13 + 3 = 12 + 6 = 12 + 4 = 15 + 3 = 12+ 3 = 12 + 2 = 13 + 6 = 11 +4 = 14 + 3 = 14 + 10 = 20 + 10 = 22 + 1 = 22+ 4 = 14 +7 = 24+ 2 = 21+ 3 = 16+5 = 19+ 2 = 20 + 3 = 22 + 3 =
13+ 5 = 21 + 5 = 5+ 6 =
16 + 3 = 15 + 4 = 18 +5 =
17 + 5 = 4 + 10 = 7+ 12 = 5 + 7 = 12 +7 = 20 + 4 = 13+4 = 17+ 8 = 24+3 = 15 + 3 = 16 + 6 = 14 + 7= 23 + 3 = 21 +4 = 21+ 4 = 11 + 7 = 11 + 10 = 13+ 9 = 12+ 9 = 13+ 8 = 12+ 7 = 13 + 4 = 17 + 5 = 11 + 4 = 21 + 3 = 14 + 7 = 23 + 6 =