8.9×0.045+0.89×0.42+0.089×1.3 如何简便计算
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 19:11:26
8.9×0.045+0.89×0.42+0.089×1.3如何简便计算8.9×0.045+0.89×0.42+0.089×1.3如何简便计算8.9×0.045+0.89×0.42+0.089×1.3如
8.9×0.045+0.89×0.42+0.089×1.3 如何简便计算
8.9×0.045+0.89×0.42+0.089×1.3 如何简便计算
8.9×0.045+0.89×0.42+0.089×1.3 如何简便计算
=0.089×(4.5+4.2+1.3)
=0.089×10
=0.89
0.89*0.45+0.89*0.42+0.89*0.13
原式=89X0.0045+89X0.0042+89+0.0013=89X(0.0045+0.0042+0.0013)=89X0.0001X(45+42+13)=89X0.0001X100=89X0.01=0.89
望采纳谢谢
=8.9*0.045+8.9*0.042+8.9*0.013=8.9*(0.045+0.042+0.013)=8.9*0.1=0.89
问问你爸
8.9×0.045+0.89×0.42+0.089×1.3 如何简便计算
8.9×0.045+0.89×0.42+0.089×1.3怎样算简便?
估算(列竖式计算) 0.89X0.32≈ 0.42×3.8≈
估算(列竖式) 0.89×0.32≈ 0.42×3.8≈
第一题,估算.(列竖式计算) 0.89×0.32≈ 0.42×第一题,估算.(列竖式计算)0.89×0.32≈ 0.42×3.8≈
估算(列竖式计算) 0.89×0.32≈估算(列竖式计算)0.89×0.32≈0.42×3.8≈
1.估算(列竖式计算) 0.89×0.321.估算(列竖式计算)0.89×0.32 0.42×3.8
谁知道8.9x0.9+0.89的简便计算
=8.9*1/100/100*100*10=0.89公斤.
0.89+8.9+89+899+8999+89999+899999+8999999 并写出计算过程~
8.9.
8.9.
8.9
8.9.
8.9.
8.9.
8.9.
8.9