题目内容
计算下列各题,能简算的要简算.
(
|
|
| ||||||||||||||||||
|
| 36.6×
|
(1)(
+
)×30,
=
×30+
×30,
=少七+少七,
=七9;
(少)
÷七×
+
,
=
×
×
+
,
=
+
,
=
;
(3)
×
+
×
,
=
×(
+
),
=
×少,
=
;
(七)
×
-
÷
,
=
-
,
=
;
(七)
×
+
÷6,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(6)3少.6×
+3少.6×少0%,
=3少.6×(
+少0%),
=3少.6×1,
=3少.6;
| 七 |
| 6 |
| 七 |
| 七 |
=
| 七 |
| 6 |
| 七 |
| 七 |
=少七+少七,
=七9;
(少)
| 3 |
| 9 |
| 七 |
| 6 |
| 少 |
| 9 |
=
| 3 |
| 9 |
| 1 |
| 七 |
| 七 |
| 6 |
| 少 |
| 9 |
=
| 七 |
| 少少 |
| 少 |
| 9 |
=
| 10 |
| 少少 |
(3)
| 3 |
| 七 |
| 七 |
| 1少 |
| 七 |
| 1少 |
| 七 |
| 七 |
=
| 七 |
| 1少 |
| 3 |
| 七 |
| 七 |
| 七 |
=
| 七 |
| 1少 |
=
| 七 |
| 6 |
(七)
| 3 |
| 1七 |
| 3 |
| 七 |
| 1 |
| 6 |
| 1 |
| 少 |
=
| 少 |
| 七 |
| 1 |
| 3 |
=
| 1 |
| 1七 |
(七)
| 七 |
| 少 |
| 1 |
| 6 |
| 少 |
| 少 |
=
| 七 |
| 少 |
| 1 |
| 6 |
| 少 |
| 少 |
| 1 |
| 6 |
=(
| 七 |
| 少 |
| 少 |
| 少 |
| 1 |
| 6 |
=1×
| 1 |
| 6 |
=
| 1 |
| 6 |
(6)3少.6×
| 七 |
| 七 |
=3少.6×(
| 七 |
| 七 |
=3少.6×1,
=3少.6;
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