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一年级数学思维题：△+○=17 ○+○=16，找到突破口，秒算出得数
精讲一年级数学思维题，△+○=17 ○+○=16，○=（） △=（）
一年级数学题集锦42/54
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精讲一年级数学思维题，△+○=17 ○+○=16，○=（） △=（）
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