初中上册70道计算题有关加减乘除的

初中上册70道计算题有关加减乘除的

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(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 (31) (-5)+19/10*(-5) (32) 11/(-17)*(-13)*12 (33) (-8)+(-10)/8*17 (34) 7-(-12)/(-1)+(-12) (35) 12+12-19+20 (36) (-13)*(-11)*20+(-4) (37) 17/(-2)-2*(-19) (38) 1-12*(-16)+(-9) (39) 13*(-14)-15/20 (40) (-15)*(-13)-6/(-9) (41) 15*(-1)/12+7 (42) (-13)+(-16)+(-14)-(-6) (43) 14*12*(-20)*(-13) (44) 17-9-20+(-10) (45) 12/(-14)+(-14)+(-2) (46) (-15)-12/(-17)-(-3) (47) 6-3/9/(-8) (48) (-20)*(-15)*10*(-4) (49) 7/(-2)*(-3)/(-14) (50) 13/2*18*(-7) (51) 13*5+6+3 (52) (-15)/5/3+(-20) (53) 19*4+17-4 (54) (-11)-(-6)*(-4)*(-9) (55) (-16)+16-(-8)*(-13) (56) 16/(-1)/(-10)/(-20) (57) (-1)-(-9)-9/(-19) (58) 13*20*(-13)*4 (59) 11*(-6)-3+18 (60) (-20)+(-12)+(-1)+(-12) (61) (-19)-3*(-13)*4 (62) (-13)/3-5*8 (63) (-15)/1+17*(-18) (64) (-13)/3/19/8 (65) (-3)/(-13)/20*5 (66) 3/12/(-18)-18 (67) 5*(-19)/13+(-6) (68) 4+4*(-19)-11 (69) (-2)+17-5+(-1) (70) 9+(-3)*19*(-19) (71) (-12)-(-6)+17/2 (72) 15*(-5)-(-3)/5 (73) (-10)*2/(-1)/4 (74) (-8)*16/(-6)+4 (75) 2-11+12+10 (76) (-3)+(-20)*(-7)*(-9) (77) (-15)+8-17/7 (78) (-14)*10+18*2 (79) (-7)+2-(-17)*19 (80) (-7)/18/1+1 (81) 11/(-9)-(-16)/17 (82) 15+5*6-(-8) (83) (-13)*(-18)+18/(-6) (84) 11-(-1)/11*(-6) (85) (-4)+(-12)+19/6 (86) (-18)/(-1)/(-19)+2 (87) 9*(-8)*(-6)/11 (88) 20*(-3)*(-5)+1 (89) (-18)-2+(-11)/20 (90) 15*1+4*17 (91) 1-10+(-14)/(-1) (92) 10+(-4)*(-19)+(-12) (93) 15/14/5*7 (94) 8+(-13)/3+1 (95) (-14)+6+(-2)*(-14) (96) (-5)/(-13)/4+7 (97) (-15)/(-2)/(-12)+(-2) (98) (-17)-(-20)-20*(-10) (99) (-7)-10-13/3 (100) (-20)+(-18)+11+9 答案： 1 -18 2 103/6 3 -37 4 9 5 -43 6 -(20/3) 7 -(199/9) 8 54/7 9 17 10 2 11 -83 12 216 13 1021/91 14 27/7 15 -1741 16 73 17 127 18 -(2885/12) 19 842 20 5 21 214 22 -41 23 -(13/28) 24 -(51/10) 25 24 26 -(268/39) 27 39/5 28 -(372/19) 29 15/11 30 -(77/19) 31 -(29/2) 32 1716/17 33 -(117/4) 34 -17 35 25 36 2856 37 59/2 38 184 39 -(731/4) 40 587/3 41 23/4 42 -37 43 43680 44 -22 45 -(118/7) 46 -(192/17) 47 145/24 48 -12000 49 -(3/4) 50 -819 51 74 52 -21 53 89 54 205 55 -104 56 -(2/25) 57 161/19 58 -13520 59 -51 60 -45 61 137 62 -(133/3) 63 -321 64 -(13/456) 65 3/52 66 -(1297/72) 67 -(173/13) 68 -83 69 9 70 1092 71 5/2 72 -(372/5) 73 5 74 76/3 75 13 76 -1263 77 -(66/7) 78 -104 79 318 80 11/18 81 -(43/153) 82 53 83 231 84 115/11 85 -(77/6) 86 20/19 87 432/11 88 301 89 -(411/20) 90 83 91 5 92 74 93 3/2 94 14/3 95 20 96 369/52 97 -(21/8) 98 203 99 -(64/3) 100 -18 ------------------- 1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -（ 3/2 + 4/5 ） 11. 7/8 + （ 1/8 + 1/9 ） 12. 9 × 5/6 + 5/6 13. 3/4 × 8/9 - 1/3 14. 7 × 5/49 + 3/14 15. 6 ×（ 1/2 + 2/3 ） 16. 8 × 4/5 + 8 × 11/5 17. 31 × 5/6 – 5/6 18. 9/7 - （ 2/7 – 10/21 ） 19. 5/9 × 18 – 14 × 2/7 20. 4/5 × 25/16 + 2/3 × 3/4 21. 14 × 8/7 – 5/6 × 12/15 22. 17/32 – 3/4 × 9/24 23. 3 × 2/9 + 1/3 24. 5/7 × 3/25 + 3/7 25. 3/14 ×× 2/3 + 1/6 26. 1/5 × 2/3 + 5/6 27. 9/22 + 1/11 ÷ 1/2 28. 5/3 × 11/5 + 4/3 29. 45 × 2/3 + 1/3 × 15 30. 7/19 + 12/19 × 5/6 31. 1/4 + 3/4 ÷ 2/3 32. 8/7 × 21/16 + 1/2 33. 101 × 1/5 – 1/5 × 21 ＝＝＝＝ 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) 一元一次方程： 1. 2(x-2)-3(4x-1)=9(1-x) 2. 11x+64-2x=100-9x 3. 15-(8-5x)=7x+(4-3x) 4. 3(x-7)-2[9-4(2-x)]=22 5. 3/2[2/3(1/4x-1)-2]-x=2 6. 2(x-2)+2=x+1 7. 0.4(x-0.2)+1.5=0.7x-0.38 8. 30x-10(10-x)=100 9. 4(x+2)=5(x-2) 10. 120-4(x+5)=25 11. 15x+863-65x=54 12. 12.3(x-2)+1=x-(2x-1) 13. 11x+64-2x=100-9x 14. 14.59+x-25.31=0 15. x-48.32+78.51=80

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