下面各题,怎样简便就怎样算.
12÷0.4÷÷9+
×
÷[(
﹣
)+(
﹣
)]
24×(+
+
) 80×
÷
×
1.8×
+1.2×
﹣
.
计算下列各题.(能简算的要简算)
3.2×25×12.5=﹣1.65﹣1.35=
×
×
=
[÷(5
)]×
= 3.85×
÷
=
计算,能简算的要写出简算的主要过程.
2.3×1.5+4.5÷0.75÷[
×(
+
)]
0.7+3.8+4.2+9.3(﹣
)÷
+22÷51
2.5:5=:X
﹣2X=
.
能简算的要简算×[2.4﹣(
+
)]
×15
﹣1.25×15
(11﹣1)÷(1﹣
×1
)(
×0.75+
×0.25)÷
.
计算,能简算的要简算.
(+
﹣
)×36
÷[
+(
﹣
)×
]
0.46÷5+46%×+0.46×
0.52﹣+0.48﹣
.