六年级分数乘法分配律练习题及详解答案

别妄想泡我
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2020年12月19日 21:12
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中单-排名前十的小说

2020年12月19日发(作者:冀朝榜)



分数乘法分配律练习题
7 1 1 8
(-)×60 (+ )×18
12 5



(
5 5 18
6

9

5




(
8

4
9 27
)×27 90



(
3 2
5

25
)×25



(
15 3 6
24

8

15




6 9
(
1 1
10

5
)×5
×(
2 7
18

30
)

1 2
6
×(12+
3
)
24×(
7 5 3
24

6

4
)



7 1
8 1
(48+
3

24
(-)×20
20 5



5 5 1 3
(
6

9
)×18 (
5

7
)×35
4
×(
3 17
17 4

2
)
22
27
×
3
4

5
27
×
3
4


7 5
12
×6 +
12
×6


48×(
11 1

5
24

6 12
)

6 7 6 2
13
×
5

13
×
5

3
3 7

4 3
8
×
11 11
×3
8
















4 6 3 6 16 7 3 7
×+× ×-×
7 13 7 13 5 13 5 13



2 2 3 4
×7+×5 21×+×21
3 3



63
100
×101



5
27
×28



34×
34
35



4
4
5
×10 25

7 7
6
77
×78
37×
3
35

6
13
×12
3
8
×8



4
1 3
3×25 (
5

7
)×7×5
5



7 1 5 5
(-)×5×12 (-)×6×18
12 5



7
10
×101-
7
10
12



9
5
×19+
9
5
23









6 9
×
6 6
13

13

×
3 3
4

4



详解答案
7 1 1 8
(-)×60 (+ )×18
12 5 6 9
7 1 1 8
=×60-×60 =×18+×18
12 5 6 9
=35-12 =3+16
=23

(
5
6

5 18
9

5


5 18
6
×
5

5
9
×
18
5

=3-2
=1

(
8 4
9

27
)×27 90

8 4
9
×27+
27
×27
=24+4
=28

(
3 2
5

25
)×25

3

2
5
×25
25
×25
=15+2
=19
(
1 1
10

5
)×5

1 1
10
×5+
5
×5

1
2
+1
=1
1
2

×(
2 7
18

30
)
=90×
2 7
18
+90×
30

=10+21
=31

1 2
6
×(12+
3
)

1 1 2
6
×12+
6
×
3

=2+
1
9





1
=17 =2
9


15 3 6 7 5 3
(
24

8

15
24×(
24

6

4
)
15 6 3 6 7 5 3

24
×
15

8
×
15
=24×
24
+24×
6
+24×
4


1 3
4

20


1
10


(48+
8 1
3

24
(
=48×
1 8 1
24

3
×
24

=2+
1
9

=2
1
9


(
5 5
6

9
)×18

5
×18-
5
6 9
×18
=15-10
=5

4 3

17
17
×(
4 2
)

4
×
3 4 17
17 4

17
×
2

=7+20+18
=45
7
20

1
5
)×20

7
20
×20-
1
5
×20
=7-4
=3
(
1 3
5

7
)×35

1 3
5
×35+
7
×35
=7+15
=22
48×(
11

1 5
24 6

12
)
=48×
11 1 5
24
+48×
6
+48×
12










3

17
+2 =22+8+20
3
=2
17
=50

22 3 5 3 6 7 6 2
27
×
4

27
×
4

13
×
5

13
×
5

=(
22 5

3
27

27

4

=1×
3
4


3
4



7 5
12
×6 +
12
×6
=(
7

5
12 12
)×6
=1×6
=6

4 6 3
7
×
13

7
×
6
13

=(
4
7

3 6
7

13

=1×
6
13


6
13


6 7 2
13
×(
5

5
)

6
13
×1

6
13

3
3 7 4 3
8
×
11

11
×3
8

=3
3 7
8
×(
11

4
11
)
=3
3
8
×1
=3
3
8

16
5
×
7
13

3 7
5
×
13

=(
16
5

3
5

7
13


13 7
5
×
13


7
5










2 2 3 4
×7+×5 21×+×21
3 3 7 7
=(
2 2 3 4
+)×5 =21×(+)
3 3 7 7
=1×5 =21×1
=5

63
100
×101

63
100
×(100+1)

63
100
×100+
63
100

=63+
63
100

=63
63
100


5
27
×28

5
27
×(27+1)

5
27
×27+
5
27
×1
=5+
5
27

=5
5
27


=21
6
77
×78

6
77
×(77+1)

6 6
77
×77+
77
×1
=6+
6
77

=6
6
77

37×
3
35

=(35+2)×
3
35

=35×
3 3
35
+2×
35

=3+
6
35

=3
6
35



34 6
34× ×12
35 13
34 6
=(35-1)× =×(13-1)
35 13
34 34 6 6
=35×-1× =×13-×1
35 35 13 13
34 6
=34- =6-
35
=33
1
35


4
4
5
×10 25
=(4+
4
5
)×10
=4×10+
4
5
×10
=40+8
=48

3
4
5
×25
=(3+
4
5
)×25
=3×25+
4
5
×25
=75+20
=95

13
=5
7
13

3
8
×8
(25+
3
8
)×8
(25×8+
3
8
)×8
200+3
203
(
1 3
5

7
)×7×5
1
×7×5+
3
5 7
×7×5
=7+15
=22






7 1 5 5
(-)×5×12 (-)×6×18
12 5 6 9
7 1 5 5

12
×5×12-
5
×5×12 =
6
×6×18-
9
×6×18
=35-12 =90-60
=23 =30

7
10
×101-
7
10
12

7
10
×(101-1)

7
10
×100
=70

9
5
×19+
9
5
23

9
5
×(19+1)

9
5
×20
=36


×
6 6
13

13

=(12+1)×
6
13

=13×
6
13

=6
×
3 3
4

4

=(23+1)×
3
4

=24×
3
4

=18

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