题目内容
直接写出得数:
[她.d着-(
-她.y着)]÷
=
[(7
+2.2÷6
)+2
]×着=
×(
×y7-
)-(y2
-d
-2
)=
[她.d着-(
| 9 |
| y6 |
| 2y |
| d |
[(7
| y |
| yd |
| 2 |
| 着 |
| 着 |
| d |
| yd |
| y6 |
| 9 |
| yd |
| 9 |
| yd |
| 2 |
| 着 |
| 着 |
| yd |
| d |
| yd |
(5)[0.i5-(
-0.55)]÷
=[0.i5+0.55-
]×
,
=[5-
]×
,
=
×
,
=
;
(2)[(7
+2.6÷6
)+2
]×5
=[(7
+
÷
)+
]×5,
=[7
+
+
]×5,
=[7
+(
+
)]×5,
=[7
+3]×5,
=50
×5,
=50
;
(3)
×(
×57-
)-(52
-3
-2
)
=
×[(57-5)×
]-[52
-(3
+2
)],
=
×56×
-[52
-6],
=9-6
,
=2
.
| 9 |
| 56 |
| 25 |
| i |
=[0.i5+0.55-
| 9 |
| 56 |
| i |
| 25 |
=[5-
| 9 |
| 56 |
| i |
| 25 |
=
| 7 |
| 56 |
| i |
| 25 |
=
| 5 |
| 6 |
(2)[(7
| 5 |
| 53 |
| 2 |
| 5 |
| 5 |
| i |
=[(7
| 5 |
| 53 |
| 52 |
| 5 |
| 32 |
| 5 |
| 25 |
| i |
=[7
| 5 |
| 53 |
| 3 |
| i |
| 25 |
| i |
=[7
| 5 |
| 53 |
| 3 |
| i |
| 25 |
| i |
=[7
| 5 |
| 53 |
=50
| 5 |
| 53 |
=50
| 5 |
| 53 |
(3)
| 53 |
| 56 |
| 9 |
| 53 |
| 9 |
| 53 |
| 6 |
| 5 |
| 5 |
| 53 |
| i |
| 53 |
=
| 53 |
| 56 |
| 9 |
| 53 |
| 6 |
| 5 |
| 5 |
| 53 |
| i |
| 53 |
=
| 53 |
| 56 |
| 9 |
| 53 |
| 6 |
| 5 |
=9-6
| 6 |
| 5 |
=2
| 5 |
| 5 |
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