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三年级数学下册三《乘法》找规律基础练习2北师大版.doc

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1找规律1.连线。7030 24000200120 210011050 5500220400 8800010022 41000411000 22002.在 里填上“” “”或“=” 。3120 600 5016 800 2940 12004929 1500 2120 2119 3320 3319+193.脱式计算我最棒！21+1120 3018-60 600-1340 28+1240答案1. 2. = 3.241 480 80 5082

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