一共有 16个朋友,现在来了几个? 还有几个没有来? Evaluation only. Evaluation only. Created with Aspose....
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13-8 =516-8 =814-9 =511-9 =212-3 =917-8 =915-5 =1011-7 =412-5 =714-4 =10
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120 以内加减混合练习12-8=6+9=12-8=6+7=6+8=9+7=7+7=8+9=9+9=7+7=12-6=7+7=9+7=6+8=15-5=13-7=7+6=8+6=16-...
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