义务教育北师大版三年级下册第六单元认识分数练习五
www.youyi100.com巩固练习35584928
www.youyi100.com15454737
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www.youyi100.com96939戴帽子同学占总人数的()()19(答案不唯一)
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www.youyi100.com1348523
www.youyi100.com34=7.14+24710-51012+121-29210=22=79=
www.youyi100.com28+38=58581-38=答:两人共吃了这个蛋糕的,还剩下。5838
www.youyi100.com27+27=47471-37=答:两天一共看了,还剩没看。4737
www.youyi100.com181229
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www.youyi100.com1号图形是原正方形的,2号是,它们共占原正方形的。
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