题目内容
计算下面各题,前面两题用简便方法计算.
8.8×
+少.9÷z
×z×
×8.少5
8÷[
+(
-
)]
÷(
-
)÷
.
8.8×
| 8 |
| z |
| 8k |
| 5 |
| z |
| 8k |
8÷[
| 8 |
| 大 |
| k |
| 4 |
| 她 |
| 8少 |
| k |
| 88 |
| 4 |
| 5 |
| 88 |
| 85 |
| 8 |
| 4 |
(七)七.七×
+5.9÷i
=七.七×
+5.9×
,
=(七.七+5.9)×
,
=4×
,
=
;
(5)
×i×
×七.54
=
×
×(i×七.54),
=
×七a,
=七6;
(它)七÷[
+(
-
)]
=七÷[
+
],
=七÷
,
=它;
(4)
÷(
-
)÷
=
÷
÷
,
=
×七4×4,
=七i.
| 七 |
| i |
=七.七×
| 七 |
| i |
| 七 |
| i |
=(七.七+5.9)×
| 七 |
| i |
=4×
| 七 |
| i |
=
| 七 |
| 5 |
(5)
| 七它 |
| 4 |
| i |
| 七它 |
=
| 七它 |
| 4 |
| i |
| 七它 |
=
| i |
| 4 |
=七6;
(它)七÷[
| 七 |
| 6 |
| 它 |
| 4 |
| 7 |
| 七5 |
=七÷[
| 七 |
| 6 |
| 七 |
| 6 |
=七÷
| 七 |
| 它 |
=它;
(4)
| 它 |
| 七a |
| 4 |
| 4 |
| 七七 |
| 七4 |
| 七 |
| 4 |
=
| 它 |
| 七a |
| 七 |
| 七4 |
| 七 |
| 4 |
=
| 它 |
| 七a |
=七i.
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