4 ÷ -3 ×1![]() | ×25 -20 ÷5+5![]() |
(1 -1 )÷(6- )×4![]() | [1 ×(1 - )+5 ]÷3 ) |

-
×
=
×
-
×
=
-
=

=
;(
-
)÷(6-
)×
=
÷
×
=
×
×
=
;
×25
-20
÷5+5
=
×
-
×
+
=
-
+
=
-
+
=
;[1
×(1
-
)+5
]÷3
)=[
×
+
]÷
=
×
=
.分析:带分数乘法、除法要先把带分数化成假分数然后进行计算,有两种括号的要先算小括号里面的,
点评:此题主要考查分数四则混合运算的计算能力.
×1
)÷(6-