0.37*99+0.37简便怎么算?
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/11/05 18:44:10
0.37*99+0.37简便怎么算?
顺便可以算的话算算1.23+3.77-0.56-1.44和3.14/0.4/2.5还有(5.28+2.28+5.28+5.28)*0.25!简便计算,脱式计算!请尽快回复,太急了~\(≧▽≦)/~
顺便可以算的话算算1.23+3.77-0.56-1.44和3.14/0.4/2.5还有(5.28+2.28+5.28+5.28)*0.25!简便计算,脱式计算!请尽快回复,太急了~\(≧▽≦)/~
0.37*99+0.37
=0.37*(99+1)
=0.37*100
=37
1.23+3.77-0.56-1.44
=(1.23+3.77)-(0.56+1.44)
=5-2
=3
3.14/0.4/2.5
=3.14/(0.4*2.5)
=3.14/1
=3.14
(5.28+5.28+5.28+5.28)*0.25
=5.28×4×0.25
=5.28×1
=5.28
=0.37*(99+1)
=0.37*100
=37
1.23+3.77-0.56-1.44
=(1.23+3.77)-(0.56+1.44)
=5-2
=3
3.14/0.4/2.5
=3.14/(0.4*2.5)
=3.14/1
=3.14
(5.28+5.28+5.28+5.28)*0.25
=5.28×4×0.25
=5.28×1
=5.28