7.08÷(1.25×0.8)=
﹣
+
=
×
÷
×
=5.38﹣(2.1+2.38)=
(
﹣
)×63=0.5×(2.6﹣2.4)=(0.18+0.9)÷0.9=3﹣
﹣
=
脱式计算.(能简算的要简算)
(1)0.125×
+1.875÷4(2)27×99
(3)30.1﹣16.8÷3.5×6.2(4)
×2.5×
×0.4
(5)
÷[
(﹣
)÷
](6)(
﹣
×
)÷
.
计算下面各题,后两题请用简便方法计算.
2+0.45÷0.9﹣
;
÷[
×(
﹣
)];
93+1.06+
+2.94;
3.78×6.2+3.78×3.8.
递等式计算(能简算的要简算)
+
+
+
(
﹣
)×24
﹣8÷8×
×[
﹣(
﹣
)]
÷
×(
﹣
)6÷[
×(
﹣
)].
计算下面各题,能简便计算的要简便计算.
35÷
×1÷8
10.15﹣6.25﹣3.75+7.85
×
+
÷8
6.48÷[(3.3﹣2.7)×0.9].