六年级分数乘法分配律练习题和详细讲解答案
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分数乘法分配律练习题7118
( 12-
5) ×60(6+9) ×18
551811
( 6-9) ×5(10 +
5) ×5
8427
( 9+27 )×2790×( 18+30 )
3212
( 5+25 )×256×(12 +3 ) 1536753
(
24-8)×1524×(24+6+4)
....
8171
(48+3)×24(20-5) ×20
5513
( 6-9) ×18(5+7) ×35 43171115
17 ×(
4+2)48×( 24+6+12 )
223536762
27× 4+
27
×
413
×
5
-
13
×
5
753743
12×6 +12×638×
11
+
11
×3
8
-----
. . . .
4
6 3 6 16
7 3 7
7
×13 +7 × 13
5
×13 -5 × 13
2
2
3
4
3 ×7+ 3 ×5
21
× 7 + 7 ×21
63 6
100 ×101
77 ×78
5
3
27 ×28
37
×
35
34
6
34× 35
13 ×12
. . . .
4
3
4 5 ×10
25
8 ×8
4
1
3
3 5 ×25
(
5 + 7 ) ×7×5
7 1
5
5
(
12-
5 ) ×5×12
(
6 - 9 ) × 6×18
7
7
6
6 10 ×101- 10
12
×
13
+
13
9
9
3
3
5 ×19+ 5
23
× 4 + 4
-----
. . . .
详解答案
7 1
1 8
(
12-
5 ) ×60 (
6 + 9
)×18
7 1
1
8
=12×60- 5 ×60 =6 ×18+9 ×18
=35-12
=3+16
=23
=19
5 5 18
1
1
(6-9)×5 (
10 +5
) ×5
5
18 5 18
1
1
= 6 × 5 - 9 × 5
=10 ×5+5
×5
1
=3-2
=2 +1
1
=1
=1 2
8 4
2
7
( 9
+27 )×27
90
×( 18 +30 )
8
4
2 7
= 9 ×27+ 27 ×27 =90× 18 +90× 30 =24+4=10+21
.
. . .
=28
=31
3 2
1 2
( 5 +25 )×25
6 ×(12 +3 ) 3
2
1 1 2
= 5 ×25+ 25 ×25
= 6 ×12+ 6 ×3
1 =15+2
=2+ 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
=7+20+18
=4 -
20
1
=45
=
10
8
1
7
1
(48 + 3
)× 24
(
20 - 5 ) ×20
1 8 1
7 1 =48× 24 + 3
× 24 = 20 ×20- 5 ×20
1
=2+ 9 =7-4
1
=2 9
=3
-----
.
. . .
5 5
1
3
(6 -9 ) ×18
(
5 +
7 ) ×35
5 5
1
3
= 6 ×18- 9 ×18 = 5 ×35+ 7 ×35 =15-10
=7+15
=5
=22
4
3 17
11
1 5
17×(4+2
)
48
×( 24 +6 +12 ) 4 3 4 17
11 1
5
= 17 × 4 +
17 × 2 =48× 24 +48× 6 +48× 12
3 +2
=22+8+20
=
17
3
=2 17
=50
22 3
5 3
6 7 6 2
27 ×
4
+
27×4 13 ×
5
-
13 × 5
22
5
3
6
7
2
=(27 +27 )× 4
=13 ×(5 - 5 ) 3
6 =1× 4
=
13 ×1 3
6
= 4
=
13
7 5
3
7 4 3 12 ×6 +12 ×6
3
8 ×
11 +11 ×38 7 5
3
7 4
=( 12 + 12 )×6
=3 8
×(11 +11 )