1 分数混合运算专项练习430 题(有答案) (1)+× (2)×﹣ × (3)3 (4). (5)﹣(+ ) (6)2﹣ ÷﹣ (7)÷8+ × (8)÷+ × (9)×+× (10)12×(75%+ ) (11)20÷ ÷ . 分数混合运算---- 2 (12)﹣﹣+ (13)87× (14)÷5+5÷ (15)÷(﹣× ) (16) (17) (18) (19)÷(﹣)÷ , (20)〔+(﹣)〕÷ , (21)42÷(÷ ), (22)(﹣)÷ , (23)× + ÷3, 分数混合运算---- 3 (24)12×(÷), (25)×7+ ×7, (26)9× ÷9× , (27)(+)÷, (28)×19﹣, (29)(+ )×32, (30)÷ ÷ , (31)×87+12÷, (32)48×(), (33)÷[ ×()], (34)[1﹣()]× , (35), 分数混合运算---- 4 (36) (37) (38) (39) (40)+ ÷+ , (41)÷7+ ×, (42)2﹣÷﹣ , (43)×(+ )+ , (44)×+× , (45)3﹣﹣, (46)× +÷5, 分数混合运算---- 5 (47)(﹣)÷+ , (48)+(+ )×, (49)× ÷(﹣), (50)(﹣)×100, (51)×+× , (52)×+ ÷, (53)(12× ﹣7
3)÷, (54)÷〔 (+)× ], (55)(×27﹣)×, (56)××18× (57)×13+ ×27 (58)+ ×5+ ×2 分数混合运算---- 6 (59)7×13×(﹣) (60)×40 (61)÷ + + (62)×(+ )+ (63)78× (64)÷(+) (65)×÷, (66)÷( + ), (67)×7+ ×11, (68), (69)(15+ )×, (70)﹣× , 分数