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# 第九届学而思综合能力测评二年级数学试卷及答案解析

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1.???10ˇ11ˇ12ˇ13ˇ14ˇ…ˇ29ˇ30ˇ29ˇ….ˇ13ˇ12ˇ11ˇ100˙澬????????澭??????澞????=300φ30-2φ?1+2+3+4+5+6+7+8+9?=810澬????????澭????????И?????????澞

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4ˊ1?3?2?2?1?3?2?2?1?3?…??????Ё??35???????????

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6ˊ????????????????1???????1??2???????3??3???????5????????????????????47??М?????????????????

7ˊ??哴????????????????????20????????????12??????8??????112

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10ˊ???????????????????0?????????????????????9??????

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=1+3+5????135,153,315,351,513,531??6?

=2+3+4????234,243,324,342,423,432??6???????3φ6=18???

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11ˊ???????????????

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