乘法分配律和结合律的练习题文档格式.docx
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29×
125×
411×
813×
4
4×
12549×
415×
(6×
12)4×
(25×
9)16×
23×
25125×
(8×
2)
56×
8202×
10×
9925×
16125×
2425×
3625×
(8+4)(36-6)×
4
45×
9+55×
9102×
26-2×
262×
17×
5075×
9+25×
925×
1012×
5×
15×
(2+40)×
2523×
27+23×
7383+99×
83125×
81-12515×
3796×
14+96×
36
(20+4)74×
24+27×
24(100+5)×
25103×
63125×
18-125×
6-125×
2
44×
12+26×
1235×
10225×
125125×
88996×
25
95×
6+30108×
5-4032×
736×
68-68+68×
65