直接写得数.
+
= ;
﹣
= ;
﹣
= ;
5﹣
= ; 5÷0.001= ; 2.5×4= ;
+
= ; 0.4+
= ; 1﹣
= ;
+0.25= ;
+
+
= ;
﹣
+
= ;
+
+
= ; 1﹣
﹣
= .
下面各题怎样简便就怎样算.
÷
×512÷(
﹣
)
÷9+
×
2.87+5.6﹣0.87+4.4
+
×
+
48×(
+
﹣
)
用递等式计算,能简算的要简算.
1÷[
×(
﹣
)
×2
+2
÷1
13
×
+6
÷16
3.5×98+3.5×27.05﹣4﹣1.05
×16﹣8÷
.
怎样简便就怎样计算.
﹣(
+
) 91﹣10÷0.25÷4
×
+
÷
35÷[
×(1﹣
)]
41×1015×
×
×
8.5﹣(5.6+4.8)÷1.312×(
﹣
+
)
能简便的请用简便运算
1.43+2.95﹣0.43
×
﹣(
﹣
)6.4÷0.4÷0.25 95×
+95×
.
脱式计算(能简算就简算)
(1)4×0.8×2.5×12.5(2)
×
÷
×
(3)
÷9+
×
(4)
÷[(
+
)×
].