第1个回答 2018-02-02
9.88•10•9+98.8=98.8•9+98.8=98.8(9+1)=988
望采纳
第2个回答 2018-02-02
9.88×90+98.8
=98.8×9+98.8
=98.8×(9+1)
=98.8×10
=988
第3个回答 2018-02-02
=9.88*90+9.88*10
=9.88*(90+10)
=9.88*100=988
第4个回答 2018-02-02
解:原式=9.88×90+9.88×10
=9.88×(90+10)
=9.88×100
=988本回答被网友采纳
第5个回答 2018-02-02
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/3bf33a87e950352adb2127c55843fbf2b3118bbe?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
就这样