求学霸给我出10道有理数混合运算题

1. 2100-21×53+2255 2. (103-336÷21)×15 3. 800-(2000-9600÷8) 4. 40×48-(1472+328)÷5 5. (488+344)÷(202-194) 6. 2940÷28+136×7 7. 605×(500-494)-1898 8. (2886+6618)÷(400-346) 9. 9125-(182+35×22) 10. (154-76)×(38+49) 11. 3800-136×9-798 12. (104+246)×(98÷7) 13. 918÷9×(108-99) 14. (8645+40×40)÷5 15. (2944+864)÷(113-79) 16. 8080-1877+1881÷3 17. (5011-43×85)+3397 18. 2300-1122÷(21-15) 19. 816÷(4526-251×18) 20. (7353+927)÷(801-792) 21. (28+172)÷(24+16) 22. 6240÷48+63×48 23. 950-28×6+666 24. 86×(35+117÷9) 25. 2500+(360-160÷4) 26. 16×4＋6×3 27.39÷3＋48÷6 28.24×4－42÷3 29.7×6-12×3 30.56÷4＋72÷8 (1) (-9)-(-13)+(-20)+(-2) (2) 3+13-(-7)/6 (3) (-2)-8-14-13 (4) (-7)*(-1)/7+8 (5) (-11)*4-(-18)/18 (6) 4+(-11)-1/(-3) (7) (-17)-6-16/(-18) (8) 5/7+(-1)-(-8) (9) (-1)*(-1)+15+1 (10) 3-(-5)*3/(-15) (11) 6*(-14)-(-14)+(-13) (12) (-15)*(-13)-(-17)-(-4) (13) (-20)/13/(-7)+11 (14) 8+(-1)/7+(-4) (15) (-13)-(-9)*16*(-12) (16) (-1)+4*19+(-2) (17) (-17)*(-9)-20+(-6) (18) (-5)/12-(-16)*(-15) (19) (-3)-13*(-5)*13 (20) 5+(-7)+17-10 (21) (-10)-(-16)-13*(-16) (22) (-14)+4-19-12 (23) 5*13/14/(-10) (24) 3*1*17/(-10) (25) 6+(-12)+15-(-15) (26) 15/9/13+(-7) (27) 2/(-10)*1-(-8) (28) 11/(-19)+(-14)-5 (29) 19-16+18/(-11) (30) (-1)/19+(-5)+1

1/2+4+9/11

12x+35

百度就有了。或者书上