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脱式计算.(能简算的要写出简算的主要过程)12×(14+34-16)920÷40+23×9914×(4.85÷518-3.6+6.15×335)49×[0.75-(716+25%)].

题目详情
脱式计算.(能简算的要写出简算的主要过程)
12×(
1
4
+
3
4
-
1
6

920÷40+23×99
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
4
9
×[0.75-(
7
16
+25%)].
脱式计算.(能简算的要写出简算的主要过程)
12×(
1
4
+
3
4
-
1
6

920÷40+23×99
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
4
9
×[0.75-(
7
16
+25%)].
脱式计算.(能简算的要写出简算的主要过程)
12×(
1
4
+
3
4
-
1
6

920÷40+23×99脱式计算.(能简算的要写出简算的主要过程)
12×(
1
4
+
3
4
-
1
6

1
4
+
3
4
-
1
6
1
4
1144
3
4
-
1
6
3
4
3344
1
6
1
6
1166
920÷40+23×99
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
4
9
×[0.75-(
7
16
+25%)].
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
1
4
1144
5
18
-3.6+6.15×3
3
5
5
18
551818
3
5
3
5
3355
4
9
×[0.75-(
7
16
+25%)].
4
9
×[0.75-(
7
16
+25%)].
4
9
4499
7
16
+25%)].
7
16
771616
▼优质解答
答案和解析
(1)12×(
1
4
+
3
4
-
1
6
),
=12×
1
4
+12×
3
4
-12×
1
6

=3+9-2,
=10;

(2)920÷40+23×99,
=23×40÷40+23×99,
=23+23×99,
=23×(1+99),
=23×100,
=2300;

(3)
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
1
4
111444+
3
4
-
1
6
),
=12×
1
4
+12×
3
4
-12×
1
6

=3+9-2,
=10;

(2)920÷40+23×99,
=23×40÷40+23×99,
=23+23×99,
=23×(1+99),
=23×100,
=2300;

(3)
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
3
4
333444-
1
6
),
=12×
1
4
+12×
3
4
-12×
1
6

=3+9-2,
=10;

(2)920÷40+23×99,
=23×40÷40+23×99,
=23+23×99,
=23×(1+99),
=23×100,
=2300;

(3)
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
1
6
111666),
=12×
1
4
+12×
3
4
-12×
1
6

=3+9-2,
=10;

(2)920÷40+23×99,
=23×40÷40+23×99,
=23+23×99,
=23×(1+99),
=23×100,
=2300;

(3)
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
1
4
111444+12×
3
4
-12×
1
6

=3+9-2,
=10;

(2)920÷40+23×99,
=23×40÷40+23×99,
=23+23×99,
=23×(1+99),
=23×100,
=2300;

(3)
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
3
4
333444-12×
1
6

=3+9-2,
=10;

(2)920÷40+23×99,
=23×40÷40+23×99,
=23+23×99,
=23×(1+99),
=23×100,
=2300;

(3)
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
1
6
111666,
=3+9-2,
=10;

(2)920÷40+23×99,
=23×40÷40+23×99,
=23+23×99,
=23×(1+99),
=23×100,
=2300;

(3)
1
4
×(4.85÷
5
18
-3.6+6.15×3
3
5
),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
1
4
111444×(4.85÷
5
18
-3.6+6.15×3
3
5
),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
5
18
555181818-3.6+6.15×3
3
5
),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
3
5
333555),
=
1
4
×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
1
4
111444×(4.85×3.6-3.6+6.15×3.6),
=
1
4
×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
1
4
111444×{(4.85-1+6.15)×3.6],
=
1
4
×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
1
4
111444×[10×3.6],
=
1
4
×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
1
4
111444×36,
=9;

(4)
4
9
×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
4
9
444999×[0.75-(
7
16
+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
7
16
777161616+25%)],
=
4
9
×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
4
9
444999×[0.75-
11
16
],
=
4
9
×
1
16

=
1
36
11
16
111111161616],
=
4
9
×
1
16

=
1
36
4
9
444999×
1
16
111161616,
=
1
36
1
36
111363636.
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