简算7777×9+111×377777×9+111×37（要简算哦)_数学解答

简算7777×9+111×37
7777×9+111×37（要简算哦)

人气：208 ℃　时间：2020-04-11 14:44:22

解答

7777×9+111×37
=7777(10-1)+111(30+7)
=77770-7777+3330+777
=77770+3330-7000
=70770+3330
=71100