内容发布更新时间 : 2025/3/10 23:32:04星期一 下面是文章的全部内容请认真阅读。
乘法结合律和交换律
3121521454××5 ××3 ×5×18 ×16× ××14 5634759137
232748452175 ×4×4 6×(18 ×30 ) 17 ×(125×34) 9 ×27 ×27 14 × 25 ×5
32522543214 × 5 ×7 5 ×10 ×6 5×7 ×5 3 ×5 ×6
乘法分配律
(712 - 15 )×60 (318+ 89 )×18 ( 55186 - 9 )×5 6 ×(
(2 + 184 )×27 (2481205 )× 5 (9 +279 + 3 )× 24
(1524- 36162
328 )× 15 6 ×(9+3 ) (5 +25)× 25 (
12×(75343171324 + 6 + 4 ) 17 ×(4 + 2) (5 + 7 )×35
45×79×58
2718 +30 ) (720- 15 )×20
56 - 59 )×18
333
24 ×5+ 4 × 5
乘法分配律
46365551676275
× + × 6 ×9 + 9 × 6 13 ×5 - 13 × 5 12 ×6 +12 × 6 713713
4636532233743×4 +27 × 4 × + × 3×+×3 0.92×1.41+0.92×8.59
71371381111827
167379934×-× 1.3×11.6-1.6×1.3 ×11.6+18.4× 21×+×21
5551351377
434535522×+××7+×5 4 ×10 25 ×8 3 ×2.5
5858877 33
34653363×101 77 × 78 27 ×28 36× 21× 20 37× 35
35100
342927665
25 × 24 34×35 13 ×12 27 ×26 31 × 30 28 × 27
7155133
(5 + 7 )×7 ×5 ( - )×5 × 12 ( - )×6×18 (5 +4 )× 25
12569
乘法分配律
48218418
( + )×7×9 20 + 5 )× 5×4 (9 +27 )×27×3 (24 + 3 )×24 79
55332321
(20 + 8 )×20×8 3×12×(3 - 6 ) ( - )×18×2 × 99 +
6955
71712727
( - )×6×10 6 ×5×(18 +30 ) ( - )×60 30×(18 +30 ) 125125
7777665522 ×101- ×101- 12× + ×7+ ×20+ 101010101313883 3
0.92×99+0.92 14×
6655333312× + 17×9 + 9 4 ×27+ 4 23×4 + 4
1313
779955- 1.3×11-1.3 ×19+ ×13+
55131377