六年级数学上册分数乘法简便运算专项练习题
散伙饭-清明上河图歌词
姓名
怎样计算简便怎样算
7185518
3
( - )×60 (+ )×18
( - )×
7534313
17
12×(
24
+
6
+
4
)
17
×(
4
+ ) (
5
+
7
)×35
2
125
(
21
20
+
5
)× 5
(
15
24
-
3
)×
6
8
15
(
24
81
9
+
3
)×
24
18
9
84
9
+
27
)×27
6
1
×(
6
2
6
9
+
3
)
(
7
20
-
1
5
)×20
(
695
×(
2
+
7
1830
)
3
+
2
5
25
)× 25
55
6
-
9
)×18
4
7
×
6
13
+
3
7
×
6
13
22
3
27
× +
5
3
427
×
4
4
7
×
6
13
+
36
7
×
13
16
5
×
7
13
-
3
5
×
7
13
5
×
55
1
6
9
+
9
×
6
6
×
7
-
62
135
13
×
5
3
3
8
×
7
11
+
43
11
×
3<
br>8
1.3×11.6-1.6×1.3
3
3
32
4
×
5
+
4
×
5
7
×6 +
5
12
12
× 6
0.92×1.41+0.92×8.59
9
5
×11.6+18.4×
9
5
1
(
(
35
552234
×+××7+×5
21×+×21
88
77
3377
434
4 ×10 25 ×8
3 ×2.5
585
63
100
×101
36×
34
35
6
25
× 24
34
5
27
×26
6
77
× 78
21×
3
20
×
34
35
29
31
× 30
5
27
×28
37×
3
35
6
13
×12
27
28
× 27
(
13
5
+
7
)×7 ×5
(
4
7
+
8
9
)×7×9
(
23
20
+
8
)× 20×
(
1
+
8
24
3
)×24
(
7
12
-
1
5
)×5 × 12
(
(
21
20
+
5
)× 5×4
8
3×12×(
21
3
-
6
)
(
71
12
-
5
)×6×10 (
5
6
-
5
9
)×6×18
8
+
4
927
)×27×3
(
3
5
+4 )× 25
5
6
-
5
9
)×18×2
2
(
姓名
71
2727
6 ×5×(
18
+
30
)
30×(
18
+
30
) ( - )×60
125
553333
17×
9
+
9
4
×19+
4
23×
4
+
4
7
10
×101-
7
10
12×
66
13
+
13
14×
7
13
-
7
13
5
7
×13+
5
7
3
5
× 99 +
3
5
55
8
×7+
8
1.3×11-1.3
2
3
×20+
2
3
7
10
×101-
7
10
0.92×99+0.92
99
5
×19+
5
12×
66
13
+
13
3
5
×
1
6
×5
4
5
×
75
9
×
8
2
× 4 ×
3
54
8
9
×
4
27
×27
2
3
×
1
4
×3
5
7
×16×
21
5
6 ×(
2
×
7
18
30
)
5
14
×
217
25
×
5
4
9
×5×18
5
13
×
4
7
×14
4
17
×(125 ×
32
5
4
×
5
×
7
34)
3
2254321
5
×
10
×
6
5×
7
×
5
3
×
5
×6
211311355
×(+) ×(+)
-×
3410563479
123521
21
×(7 - ) ( + )× 25
1- ×
16412229
6351425
1
2
+
6
4
×
4
6
5
7
-
46
9
×
4
7
12
×6+
5
12
25
1
6
×(5 -
2
3
)
1-
5
7
×
21
25
543
13
×
7
+
8
2
5
×
2
10
+
9
10
1
2
+(
54
4
×
5
)
1
3
×
3
5
+
4
5
2
+
4
×
6
6
×(5 -
3
)
5
7
-
4
9
×
6
4
1-
5
21
7
×
25
7
12
×6+
5
12
543
13
×
7
+
8
5
×
10
+
10
154
2
+(
4
×
5
)
1
3
×
3
5
+
4
5
4