题目内容
| 脱式计算 (384+336)÷15×13 | (11+30.6)÷16+16.5 | ||||||||||||
2-
| 〔1-(
|
(1)(384+336)÷15×13,
=720÷15×13,
=48×13,
=624;
(2)(11+30.6)÷16+16.5,
=41.6÷16+16.5,
=2.6+16.5,
=19.1;
(3)2-
×
-
,
=2-
-
,
=2-(
+
),
=2-1,
=2;
(4)[1-(
+
)]÷
,
=[1-
]÷
,
=
÷
,
=
.
=720÷15×13,
=48×13,
=624;
(2)(11+30.6)÷16+16.5,
=41.6÷16+16.5,
=2.6+16.5,
=19.1;
(3)2-
| 5 |
| 4 |
| 8 |
| 15 |
| 1 |
| 3 |
=2-
| 2 |
| 3 |
| 1 |
| 3 |
=2-(
| 2 |
| 3 |
| 1 |
| 3 |
=2-1,
=2;
(4)[1-(
| 1 |
| 6 |
| 1 |
| 4 |
| 7 |
| 10 |
=[1-
| 5 |
| 12 |
| 7 |
| 10 |
=
| 7 |
| 12 |
| 7 |
| 10 |
=
| 5 |
| 6 |
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