| 204×35-634 | 3.6-3.6÷0.9×0.8 | ![]() |
![]() | × . |
| 解:①204×35-634, =7140-634, =6506; ②3.6-3.6÷0.9×0.8, =3.6-4×0.8, =3.6-3.2, =0.4; ③6 ÷[5.8÷(5.4-4 )],=6 ÷[5.8÷ ],=6 ÷[ × ],=6 ÷ ,= × ,=1 ;④ ,=2 ÷ ,= × ,=5 ;⑤ × ],=6 ÷[(21.74-0.24)× ],= ÷[21.5× ],= ÷ ,= . |
分析:根据四则混算的运算顺序计算即可.
点评:抓住运算顺序,注意计算技巧的提高.


×
.
÷[5.8÷(5.4-4
)],
],
×
],
,
×
,
;
÷
,
×
,
;
],
÷[(21.74-0.24)×
÷[21.5×
,