1+0.23+0.456)×(0.23+0.456+0.789)—(0.1+0.23+0.456+0.789) ×(0.
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/10/05 23:26:55
1+0.23+0.456)×(0.23+0.456+0.789)—(0.1+0.23+0.456+0.789) ×(0.23+0.456)
(0.1+0.23+0.456)×(0.23+0.456+0.789)—(0.1+0.23+0.456+0.789) ×(0.23+0.456)
=0.1×(0.23+0.456)+0.1×0.789+(0.23+0.456)×(0.23+0.456)+(0.23+0.456)×0.789-0.1×(0.23+0.456)-(0.23+0.456)×(0.23+0.456)-0.789×(0.23+0.456)
=0.1×0.789
=0.0789
=0.1×(0.23+0.456)+0.1×0.789+(0.23+0.456)×(0.23+0.456)+(0.23+0.456)×0.789-0.1×(0.23+0.456)-(0.23+0.456)×(0.23+0.456)-0.789×(0.23+0.456)
=0.1×0.789
=0.0789
计算.要简便 (1+0.12+0.23)*(0.12+0.23+0.34)-(1+0.12+0.23+0.34)*(0.
求解(1+0.12+0.23)*(0.12+0.23+0.34)-(1+0.12+0.23+0.34)*(0.12+0.
18.56-0.23-0.
1.(1十0.23十0.34)*(0.23十0.34十0.56)一(1十0.23十0.34十0.56)*(0.23十0.
简便计算:(1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23
(1+0.23+0.34)*(0.23+034+0.56)-(1+0.23+0.34+0.56)*(0.23+0.34)
题一:(1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0
(1+0.23+0.34)×(0.23+0.34+0.56)-(1+0.23+0.34+0.56)×(0.23+0.34
(1+0.12+0.23)×(0.12+0.23+0.34)-(1+0.12+0.23+0.34)×(0.12+0.23
(1+0.23+0.34)×(0.23+0.34+0.65)-(1+0.23+0.34+0.65)×(0.23+0.34
4.6分之X减1=0.23分之0.
﹙1+0.23+0.34﹚×﹙0.23+0.34+0.56)-﹙1+0.23+0.34+0.56﹚×﹙0.23+0.34