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)].
下列各题,怎样算简便就怎样算.
(1)4.85×0.17+0.485×8.3(2)
+
×99+
(3)2008×
(4)2
﹣2.86×(6.25﹣6
)
下面各题,怎样简便就怎样算.
19.98×37﹣199.8×1.9+1998×0.829999×7+1111×37 231÷231
(70+
)×
.
计算下面各题,怎么简便就怎样算
①9
﹣(3
+0.4)②1.8×
+2.2×25%
③(8
﹣10.5×
)÷4
④2
÷[5
﹣4.5×(20%+
)].