下面各题,怎样简便就怎样算.
4×4.9×25×
+
÷
7.6×99
÷[
×(
+
)] 720÷15÷6
+
÷
+
+0.6+
(6+
)÷3.
计算下面各题,能简算的要简算.
48×(+
﹣
) 1.25×3.2×0.25 7﹣7×
+
35×(1﹣)÷
÷19+
×
+
×
.
直接写得数.
12.01×9.98≈ 8×1.25= 100÷4÷25= 1﹣÷62.5%=
0.5×= 1﹣
﹣0.75= 3.2+0.5﹣3.2+0.5=(
+
+
)×6=
下面各题怎样简便怎样算.
401﹣﹣
﹣
[1﹣(﹣
)]×
.
0.85×102×18+0.4×32 35÷
×1﹣
÷(1﹣
×
)
直接写得数.÷18= 125×0.8= 1÷
+
= 36×(
﹣
)= 2
﹣0.76+
=
3.6×= 50×2.4= 10÷
= 10.01×8.99≈
×
÷
×
=