二年级数学下册5混合运算第4课时练习课课件新人教版.ppt

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第4课时 练习课,=38,=58,=17,=9,=3,=54,8,15,21,23,22,29,35,37,3,5,7,9,15,25,35,45,=43,=17,=11,=19,=4,=59,9,6,819-3=6,56,88,32+78=88,=25,=54,=20,=60,=7,=4,=21,=29,=5,=20,=13,=13,=13,=13,=42,=42,=82,=8,=8,=26,=9,=53,32,剩余钱数(35-3)=32(元),可买笔袋个数328=4(个),

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