最新课件用计算器计算PPT课件（苏教版四年级数学课件）.ppt

用计算器计算,苏教版第七册,下面各题，哪一个算式的计算结果是正确的,1、85713542303574822、85713542303584823、8571354230359482,古代的计算工具,算筹,算盘,手摇式计算器,显示器,键盘,关机键,用计算器计算：,3827,3018,65,540,用计算器计算：,765469143825763028296558976,62525416001287654692968166827,1234,4014,63,44764,25,325,938,324,下面各题，哪一个算式的计算结果是正确的,1、85713542303574822、85713542303584823、8571354230359482,比一比,1258100,375153,16875,10,练一练,3009875356100036040765469269,2700,311500,600,965,考考你（1）,1428571142857214285731428574,14285751428576,142857,285714,428571,571428,714285,857142,考考你（2）,11111111111111111111,1111111111111111111111,1,121,12321,1234321,123454321,12345654321,考考你（3）,49449944499944449999,4444499999,36,4356,443556,44435556,4444355556,考考你（4）,353533533533353335,1225,112225,11122225,