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9+515 7- 34
7+812 8+810+6
12 -58 15-914-7
0 +911-2 17-716-8
14+4 = 16-5 = 9+6 = 7+9 = 10+10 =
19-8 = 3+7 = 5+10 = 13-6 = 11-5 =
16-9 = 8+8 = 3+14 = 17-8 = 7+6 =
7+7 = 12-8 = 15-8 = 8+3 = 11-4 =
8+=16 +8=17 13-= +=15
□○□=□( )
画△,△比○少4个。
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