人教版四年级数学下册竖式计算天天练484文档格式.docx
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337614764
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464814632
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299+840=601+174=679+93=
299601679
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572+210=796+141=804-58=
572796804
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815+820=846-430=105-53=
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289+513=780-202=751+54=
289780751
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856980425
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343676990
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614722631
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968590956
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918972376
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949+506=657-342=388+42=
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965+419=542-458=497+77=
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346700928
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681+378=847+300=628-55=
681847628
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448+214=675+449=987-42=
448675987
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800+705=533-104=295+29=
800533