
用递等式计算下面各题208×35÷(100-48);27÷57-14×25;5.1÷(2.6-0.5×5);12÷[(12+34)×15].
用递等式计算下面各题208×35÷(100-48);27÷57-14×25;5.1÷(2.6-0.5×5);12÷[(12+34)×15]....
用递等式计算下面各题208×35÷(100-48);27÷57-14×25;5.1÷(2.6-0.5×5);12÷[(12+34)×15].
展开
1个回答
展开全部
(1)208×35÷(100-48)
=208×35÷52
=7280÷52
=140;
(2)
÷
-
×
=
-
=
;
(3)5.1÷(2.6-0.5×5)
=5.1÷(2.6-2.5)
=5.1÷0.1
=51;
(4)
÷[(
+
)×
]
=
÷[
×
]
=
÷
=2.
=208×35÷52
=7280÷52
=140;
(2)
2 |
7 |
5 |
7 |
1 |
4 |
2 |
5 |
=
2 |
5 |
1 |
10 |
=
3 |
10 |
(3)5.1÷(2.6-0.5×5)
=5.1÷(2.6-2.5)
=5.1÷0.1
=51;
(4)
1 |
2 |
1 |
2 |
3 |
4 |
1 |
5 |
=
1 |
2 |
5 |
4 |
1 |
5 |
=
1 |
2 |
1 |
4 |
=2.
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询