直接写出得数.=45×99= 0.9×99+0.9=
=
=
巧算下列各题.
(×0.11+0.11×
)×25
0.375×﹣
+6.625×37.5%
24×(+
﹣
)
98.3﹣3.32﹣5.68+10.7.
怎样算简便就怎样算.
10÷8+3.96×12.5%+2.04××3.6+
×
+3.6
÷〔(
+
)×
〕
859×1.9﹣8.59×80﹣85.9.
怎样算简便就怎样算.
8.89×36+8.89×63+8.89
1﹣1÷2﹣1÷3﹣
2007×
216×(
﹣
.
用简便方法计算下面各题.
(0.86+0.86+0.86+0.86)×254÷1+6×
125÷(50÷8) 7.6×÷[1.9﹣1.9×(1.9﹣1.9)].