下面各题,怎样算简便就怎样算.
1080+270÷18﹣8647.54++2.46+
(2.4﹣
)÷0.625+
2.5×12.5×40×0.86﹣÷
﹣
.
下面各题,怎样简便就怎样算.
19.98×37﹣199.8×1.9+1998×0.829999×7+1111×37
[﹣(
﹣
)]×
(70+
)×
.
脱式计算.
0.6+32×0.25﹣6÷[(
+
)×
]1.05×(3.8﹣0.8)÷6.3
+
×99+
.
下面各题,怎样简便怎样算.
(1)199+99×99(2)75÷4+24×+
(3)35.4﹣2.76+64.6+7.24(4)(+0.2)÷0.25×250%
怎样简便就怎样算.÷
+
×
(1﹣
÷
)×
(
+
﹣
)×12
÷[
×(
+
)].