脱式计算.(能简便的要简便)
(1)2005﹣395+605(2)16×125×21(3)÷(1﹣
)
(4)﹣8×
(5)(
﹣
)÷
(6)4.8×96+4.8÷
.
计算:(能简便的要简便计算)
①2526﹣36×42÷27
②17.09﹣3.63﹣6.37
③1×(
﹣
)
④5.6×3﹣
×(9﹣2.5)
⑤0.25÷(+0.2)﹣
.
怎样算简便就怎样算:
2008×;72.5+12.5+12.5÷
; [(
+1
)×
﹣0.25]÷
;
下面各题怎样简便就怎样计算.
3.2×2.5×12.50.25÷(+0.2)﹣
7÷〔
×(
+
)〕 5.7×0.25+6.8×25%﹣8.5×
.
下面各题怎样简便就怎样算
14.4÷0.125÷8(+
)×24×
2.34×56﹣23.4×5.6
1.5×+0.8×5.5+2×
1005÷[42×(
﹣
)]
÷[1﹣(
+
)].