有理数计算专题训练
有理数的混合运算 (1)
1111323310234228 (3)2 (4)
32123231515140.25545 (2)84
32205.16.(5)
232232232 (6)2
3335(7)53335 (8)14714
2
1113938742 (9)2557 (10)4232
(11)(-0.9)+(+4.4)+(-8.1)+(+5.6) (12)
|21172|()(4)3539
(13)-[-(-2)]+{-[-(+5)]} (14)(-2)×(-3)×(-5)
(15)(-9.)×(-6.2)×(-26)×(-30.7)×0
(16)(212)(110)(109)(5);
(18)(3)(4)60(12);
1(20)[124(381634)24](5);
(22)53(52)42(15353)
(17)
(56)(153416)(14)7 (19)15(16)(6);
(21)512(1312)311(114). (23)8121(16)×449