未知题型

算一算。15－8＋6=4＋3＋8=16－9＋8=6＋7－6=13－5＋4=17－9－6=5＋6＋2=14－8＋3=6＋9－2=算一算。 15-8+6= 4+3+8= 16-9+8= 6+7-6= 13-5+4= 17-9-6= 5+6+2= 14-8+3= 6+9-2=

【参考答案】

13；15；15；7；12；2；13；9；13

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