脱式计算(能简算的要简算)
(+
﹣
)÷
77×(﹣
)+
×77
314×[2.4÷(1.6×)].
直接写出得数:÷3=
×15=3.14×8=
×75%=
+
×
=
52﹣32=÷
=4×25%+16×25%=1+2%=
×4×
=
÷26=2﹣
=
脱式计算,能简算的要简算.
(1)8.4×+1.6÷10(2)
÷
+
×
(3)(+
)×4+
(4)12.5﹣(8.5+0.625÷62.5%)
计算下面各题.(能简算的要简算).
(1)×40%+
×60%
(2)×
×80%
计算下面各题,怎样简便就怎样算.
1.29+3.7+0.71+6.323.4﹣8.54﹣1.466.75×0.5+4.86
19×3.6﹣3.6×92.5×1.8×0.0410.24÷1.25÷8.