无
*注意事项：
6+=12 7+=12 8+=12 9+=12 4+=12
6+=13 7+=13 8++13 5+=13 3+=13
12 – 7 = 12 – 4 = 12 – 9 = 12 – 6 =
13 – 5 = 13 – 9 = 13 – 7 = 13 – 4 =
13 – 76 12 – 85 13 – 93 12 – 57
13–＞6 12–＞5 5+＜12
12–＞9 13–＞8 6+＜11
12–＞7
○= △=
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