四年级混合运算习题.doc

文档介绍：2100-21x53+2255
(2886+6618)-(400-346)
(103-336-21)x15
9125-(182+35x22)
800-(2000-9600-8)
(154-76)x(38+49)
40x48-(1472+328)-5
3800-136x9-798
(488+344)-(202-194)
(104+246)x(98-7)
2940-28+136x7
918-9x(108-99)
605x(500-494)-1898
(8645+40x40)-5
(2944+864)-(113-79)
8080-1877+1881-3
(5011-43x85)+3397
(7353+927)-(801-792)
2300-1122-(21-15)
816-(4526-251x18)
(28+172)-(24+16)
6240-48+63x48
16x4+6x3
950-28x6+666
86x(35+117-9)
2500+(360-160-4)
7x6-12x3
56-4+72-8
2940-28x21
920-1680-40-7
690+47x52-398
24x4-42-3
148+3328-64-75
360x24-32+730
2100-94+48x54
51+(2304-2042)x23