计算,能简算的要简算.
(4﹣7.5×)÷
0.25÷
+0.25×
2.8×
+1.2÷
45÷[72×()] 7.2+[(7.8+
)÷0.4]
.
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%+
)].
计算下面各题,怎样简便就怎样算.
33.02﹣(148.4﹣90.85)÷2.5 4×0.6+0.6÷
(1÷+
÷1)÷5.118.1+(3
﹣0.299÷0.23)×1
.
怎样算简便就怎样算..
直接写得数.
365+199=1.32÷0.25÷4=(﹣
)×20= 3÷8+
=
2626÷26=0.15+0.85= 6÷×
=44÷
=