40道四年级简便运算练习题Word文档下载推荐.doc
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84×
39×
25
4×
25+16×
254×
16×
2536×
99
(25+15)×
4(25×
15)×
449×
49+49×
51
49×
99+49(68+32)×
55×
289×
2
68+32×
5(125×
25)×
4(125+17)×
8
64×
12585×
82+82×
1525×
97+25×
3
15-14×
15125×
8888×
102
87×
99+8779×
25+2576×
101-76
378+527+73167+289+3358+39+42+61
36×
45+36×
56-3666×
93+93×
33+9399×
32
46×
2536×
56-3666×
33+93
97+89+1188×
102125×
88