如题所述
第1个回答 2021-09-17
7.77x101-0.777
=7.77x(100+1)-0.777
=7.77x100+7.77-0.777
=777+(7.77-0.77-0.007)
=777+7-0.007
=784-0.007
=783.993
=7.77x(100+1)-0.777
=7.77x100+7.77-0.777
=777+(7.77-0.77-0.007)
=777+7-0.007
=784-0.007
=783.993
第2个回答 2021-09-16
7.77乘101-0.777:怎么简便运算?
具体方法如下:
7.77*101-0.777
=7.77*(100+1)-0.777
=7.77*100+7.77*1-0.777
=777+7.77-0.777
=784.77-0.777
=783.997
具体方法如下:
7.77*101-0.777
=7.77*(100+1)-0.777
=7.77*100+7.77*1-0.777
=777+7.77-0.777
=784.77-0.777
=783.997
第3个回答 2021-09-17
7.77×101-0.777简便运算:
7.77×101-0.777
=7.77×(100+1)-0.777
=777+7.77-0.777
=784.77-0.777
=783.993
7.77×101-0.777
=7.77×(100+1)-0.777
=777+7.77-0.777
=784.77-0.777
=783.993
第4个回答 2021-09-17
7.77×101-0.777
=7.77(100+1)-0.777
=777+7.77-0.777
=777+7+0.77-0.777
=784-0.007
=783.993
=7.77(100+1)-0.777
=777+7.77-0.777
=777+7+0.77-0.777
=784-0.007
=783.993
第5个回答 2021-09-17
7.77*101-0.777
=7.77*(101-0.1)
=7.77*(100+1-0.1)
=777+7.77-0.777
=777+6.993
=783.993
=7.77*(101-0.1)
=7.77*(100+1-0.1)
=777+7.77-0.777
=777+6.993
=783.993