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计算.(能简算的就简算)1042-384÷16×1346×5.6-4.5×5658-217+38-1317(2.5-2.5×0.6)÷4.
题目详情
计算.(能简算的就简算)
1042-384÷16×13 | 46×5.6-4.5×56 |
| (2.5-2.5×0.6)÷4. |
▼优质解答
答案和解析
(1)1042-384÷16×13
=1042-24×13
=1042-312
=730;
(2)46×5.6-4.5×56
=46×5.6-45×5.6
=(46-45)×5.6
=1×5.6
=5.6;
(3)
-
+
-
=
+
-(
+
)
=1-
=
(4)(2.5-2.5×0.6)÷4
=(2.5-1.5)÷4
=1÷4
=0.25.
=1042-24×13
=1042-312
=730;
(2)46×5.6-4.5×56
=46×5.6-45×5.6
=(46-45)×5.6
=1×5.6
=5.6;
(3)
5 |
8 |
2 |
17 |
3 |
8 |
13 |
17 |
=
5 |
8 |
3 |
8 |
2 |
17 |
13 |
17 |
=1-
15 |
17 |
=
2 |
17 |
(4)(2.5-2.5×0.6)÷4
=(2.5-1.5)÷4
=1÷4
=0.25.
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