六年级上册数学分数乘法的简便计算练习题
美国东海岸-实习报告范文3000字
六年级上册数学分数乘法的简便计算练习题
一、分数与整数相乘。
61323
×15 = 24× = ×7=
×20=
548
5
12
×4=
26×
6
13
=
14
15
×30=
10
11
×121=
1
4
×8 = 12×
5
16
=
4
25
×15=
7
18
×12= 16
7
9
×7=
16
27
×54= 11
二、分数和分数相乘。
2
5
×
3
4
=
67
7
×
8
=
12
25
×
15
16
=
49
5
×
10
=
4
9
×
27
16
=
1425
15
×
21
=
6
11
×
22
15
=
1745
27
×
68
=
21
11
15
×5=
9
14
×21 =
5
×
9
28
=
×
9
20
=
17
×
9
22
=
5
9
×
8
15
=
2
3
×
15
16
=
20
27
×
3
8
=
19
33
×
11
38
=
10
2
13
×6 =
×
3
11
=
9
44
×11 =
×
13
51
=
14
15
×20=
9
11
×
7
15
=
7
8
×
5
21
=
7
9
×
18
35
=
8
17
×
17
20
=
42
× = × = 45× =
× =
343613375114
87294
0× =
9× = × = ×100=
1318310
三、分数乘、加、减混合。
7
16
×(
50241553
63
-
7
)
5
×
16
×14
6
×
4
+1
9
14
-
5
9
×
27183865
35
1-
19
×
45
15
×(5-
13
)
四、分数乘、加、减简便运算。
13
15
×
7
26
×5
(
5
8
+
11
12
)×24
15
16
×
201925
21
×
5
10
×
3
×
6
(
5
6
-
4
9
)×36 99×
97
98
25
2
3
+
54
12
×
15
19
91
×7+
8
13
9
14
×
17
18
×14
5
33
×22×
1
2
9
13
-
79
18
×
13
67843911
×12× × ×
×97×
71215716119
37535774127
× +
× × + × ×15- ×15
812128
53
56
×57
185
3
×(
3
-
6
)
(13+
2
3
×
1
5
×3
5
(
21
20
+
5
)× 5
(
3
8
-
36
8
)×
15
179917
5
17
+
5
17
×16
1
9
)×
9
13
×
4
7
×
3
5
84
9
+
27
)×27 6
1
6
×(7 -
2
3
)
2525
23
25
×
16161
17
+
25
×
17
66
13
×12+
66
13
2
5
× 4 ×
3
4
×(
27
18
×
30
)
5
6
×
5
9
+
5
9
×
1
6
(
2353676275
× + × × - ×
×6 - × 6
942741351351212
336
21×
37× × 24
20
(
3
5
+ 7 )× 25
1-
521
14
×
25
12×(
7
24
+
53
6
+
4
)
19
20
× 199 ×
19
20
35
3
4
×
1
2
+
3
4
×
2
5
1
2
+
6
4
×
4
6
4
17
×(125 × 34)
(24 +
81
3
)×
24
25
5
7
-
4
9
×
5
7
1
6
×(5 -
2
3
)
1
5
+
3
7
)×7 ×5
6
77
× 78
(