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÷
=