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简便计算(1)4.85-59+5.15-49(2)19×(434÷518-3.6+6.15×335)(3)34÷[(45+14)×37](4)116+3

题目详情
简便计算
(1) 4.85-
5
9
+5.15-
4
9

(2)
1
9
×(4
3
4
÷
5
18
-3.6+6.15×3
3
5
)
(3)
3
4
÷[(
4
5
+
1
4
3
7
]
(4) 1
1
6
+3
1
12
+5
1
20
+7
1
30
+9
1
42
简便计算
(1) 4.85-
5
9
+5.15-
4
9

(2)
1
9
×(4
3
4
÷
5
18
-3.6+6.15×3
3
5
)
(3)
3
4
÷[(
4
5
+
1
4
3
7
]
(4) 1
1
6
+3
1
12
+5
1
20
+7
1
30
+9
1
42
简便计算
(1) 4.85-
5
9
+5.15-
4
9

(2)
1
9
×(4
3
4
÷
5
18
-3.6+6.15×3
3
5
)
(3)
3
4
÷[(
4
5
+
1
4
3
7
]
(4) 1
1
6
+3
1
12
+5
1
20
+7
1
30
+9
1
42
简便计算
(1) 4.85-
5
9
+5.15-
4
9

(2)
1
9
×(4
3
4
÷
5
18
-3.6+6.15×3
3
5
)
(3)
3
4
÷[(
4
5
+
1
4
3
7
]
(4) 1
1
6
+3
1
12
+5
1
20
+7
1
30
+9
1
42
简便计算
(1) 4.85-
5
9
+5.15-
4
9

(2)
1
9
×(4
3
4
÷
5
18
-3.6+6.15×3
3
5
)
(3)
3
4
÷[(
4
5
+
1
4
3
7
]
(4) 1
1
6
+3
1
12
+5
1
20
+7
1
30
+9
1
42

4.85-
5
9
+5.15-
4
9

(2)
1
9
×(4
3
4
÷
5
18
-3.6+6.15×3
3
5
)
(3)
3
4
÷[(
4
5
+
1
4
3
7
]
(4) 1
1
6
+3
1
12
+5
1
20
+7
1
30
+9
1
42
5
9
5 9 5 5 9 9
4
9
4 9 4 4 9 9
1
9
×(4
3
4
÷
5
18
-3.6+6.15×3
3
5
)
(3)
3
4
÷[(
4
5
+
1
4
3
7
]
(4) 1
1
6
+3
1
12
+5
1
20
+7
1
30
+9
1
42
1
9
1 9 1 1 9 9
3
4
3 4 3 3 4 4
5
18
5 18 5 5 18 18
3
5
3 5 3 3 5 5
3
4
÷[(
4
5
+
1
4
3
7
]
(4) 1
1
6
+3
1
12
+5
1
20
+7
1
30
+9
1
42
3
4
3 4 3 3 4 4
4
5
4 5 4 4 5 5
1
4
1 4 1 1 4 4
3
7
3 7 3 3 7 7
1
1
6
+3
1
12
+5
1
20
+7
1
30
+9
1
42
1
6
1 6 1 1 6 6
1
12
1 12 1 1 12 12
1
20
1 20 1 1 20 20
1
30
1 30 1 1 30 30
1
42
1 42 1 1 42 42
▼优质解答
答案和解析
(1) 4.85- 5 9 +5.15- 4 9 ,=4.85+5.15-( 5 9 + 4 9 ),=10-1,=9;(2) 1 9 ×(4 3 4 ÷ 5 18 -3.6+6.15×3 3 5 ) ,= ...