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六年级脱式500道.doc

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1、 2、 3、 4. 8× 5/4 + 1/4 5. 6÷ 3/8 – 3/8 ÷6 6. 4/7 × 5/9 + 3/7 × 5/9 7. 5/2 -( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9 × 5/6 + 5/6 10. 3/4 × 8/9 - 1/3 11. 7 × 5/49 + 3/14 12. 6 ×( 1/2 + 2/3 ) 13. 8 × 4/5 + 8 × 11/5 14. 31 × 5/6 – 5/6 15. 9/7 - ( 2/7 – 10/21 ) 16. 5/9 × 18 – 14 × 2/7 17. 4/5 × 25/16 + 2/3 × 3/4 18. 14 × 8/7 – 5/6 × 12/15 19. 17/32 – 3/4 × 9/24 20. 3 × 2/9 + 1/3 21. 5/7 × 3/25 + 3/7 22. 3/14 ×× 2/3 + 1/6 23. 1/5 × 2/3 + 5/6 24. 9/22 + 1/11 ÷ 1/2 25. 5/3 × 11/5 + 4/3 26. 45 × 2/3 + 1/3 × 15 27. 7/19 + 12/19 × 5/6 28. 1/4 + 3/4 ÷ 2/3 29. 8/7 × 21/16 + 1/2 30. 101 × 1/5 – 1/5 × 21 31.50+160÷40 32.120-144÷18+35 33.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.95÷(64-45) 36.178-145÷5×6+42 37.812-700÷(9+31×11) 38.85+14×(14+208÷26) 39.(284+16)×(512-8208÷18) 40.120-36×4÷18+35 41.(58+37)÷(64-9×5) 42.(6.8-6.8×0.55)÷8.5 43.0.12× 4.8÷0.12×4.8 44.(3.2×1.5+2.5)÷1.6 45.6-1.6÷4 46.7.2÷0.8-1.2×5 47.6.5×(4.8-1.2×4) 48.10.15-10.75×0.4-5.7 49.5.8×(3.87-0.13)+4.2×3.74 50.32.52-(6+9.728÷3.2)×2.5 1.[(7.1-5.6)×0.9-1.15] ÷2.5 2.5.4÷[2.6×(3.7-2.9)+0.62] 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 7.314-202 8.526+301 9.223-99 10.6.25+3.85-2.125+3.875 11.9-2456*21 12.0.5/11.5-4*2.75 13.1/2×3/5 14.3.375+5.75+2.25+6.625 15.1001-9036÷18 16.3.8×5.25+14.5 17.2.1*4.3+5.7*2.1 18.30×1/3 19.102*45-328 20.2/3×12 21.2.8*3.1+17.6/8 22.3/5×5/6 23.(50-12.5)/2.5 24.2/5×1/3 25.6110*47+639 26.1/2-1/6 27.3.5*2.7-52.2/18 28.1/7×1/5 29.3.375*0.97+0.97*6.625 30.25×4/5 31.6.54+2.4+3.46+0.6 32.5/6-1/2 33.95.6*1.8+95.6*8.2 34.420+580-64×21÷28 35.(136+64)×(65-345÷23) 36.3.2×(1.5+2.5)÷1.6 37、 38、 39.12.37-3.25-6.75 40.16*6.8+2.2*16+16 41.401*19+284 42.58.7-16.65/3.7 43.0.4*4.7*2.5+(2.3+5.3) 44.9.31-1.125-7.875 45.640+128*45 46.8.2*1.6-0.336/4.2 47.400*(0.62+0.08) 48.120-36×4 49.(58+37)÷(64-9×5) 50.(6.8-6.8×0.55)÷8.5÷18+35 1. 3/7 × 49/9 - 4/3 2. 8/9 × 15/36 + 1/27 3. 12× 5/6 – 2/9 ×3 4、 5、 6、 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 34.50+160÷40 35.120-144÷18+35 36.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.95÷(64-45) 39.178-145÷5×6+42 40.812-700÷(9+31×11) 41.85+14×(14+208÷26) 42.12×6÷(12-7.2)-6 43.120-36×4÷18+35 44.(58+37)÷(64-9×5) 45.(6.8-6.8×0.55)÷8.5 46.0.12× 4.8÷0.12×4.8 47.(3.2×1.5+2.5)÷1.6 48.6-1.6÷4 49.7.2÷0.8-1.2×5 50.6.5×(4.8-1.2×4) 51、 52、 53、 54.5.4÷[2.6×(3.7-2.9)+0.62] 55.12×6÷(12-7.2)-6 56.12×6÷7.2-6 57.0.68×1.9+0.32×1.9 58.58+370)÷(64-45) 59.420+580-64×21÷28 60.136+6×(65-345÷23) 61.15-10.75×0.4-5.7 62.18.1+(3-0.299÷0.23)×1 63.(6.8-6.8×0.55)÷8.5 64.0.12× 4.8÷0.12×4.8 65.(3.2×1.5+2.5)÷1.6 66.3.2×6+(1.5+2.5)÷1.6 67.0.68×1.9+0.32×1.9 68.10.15-10.75×0.4-5.7 69.5.8×(3.87-0.13)+4.2×3.74 70.32.52-(6+9.728÷3.2)×2.5 71.[(7.1-5.6)×0.9-1.15] ÷2.5 72.5.4÷[2.6×(3.7-2.9)+0.62] 73.12×6÷(12-7.2)-6 74.12×6÷7.2-6 75.33.02-(148.4-90.85)÷2.5 76. 76.(25%-695%-12%)*36 77./4*3/5+3/4*2/5 78.1-1/4+8/9/7/9 79.0+1/6/3/24+2/21 80.0/15*3/5 81.3/4/9/10-1/6 82./3+1/2)/5/6-1/3]/1/7 83./5+3/5/2+3/4 84.(2-2/3/1/2)]*2/5 85.0+5268.32-2569 86.3+456-52*8 87.5%+6325 88.1/2+1/3+1/4 89.15/16+(7/16-1/4)÷1/2 90.0.25*2.69*4 91.2348+275*16 92.2/9*15/8-1/12*9/5 93.2.4+2.4*(5.375-3.375) 94.645-45*12 95.0.15+1.2/0.24-0.45 96.3.75-(2.35+0.25/1.25) 97.76*1/4+23*25/100+0.25 98.10-2.87-7.13 99.0.96+9.6*9.9 100.1.75-5.7*1/3 1.[(5.84-3.9)/0.4+0.15]*0.92 2.4.38/(36.94+34.3*0.2)  3.(284+16)*(512-8208/18)  4.5.4/[2.6*(3.7-2.9)+0.62]  5.[(7.1-5.6)*0.9-1.15]/2.5  6.32.52-(6+9.728/3.2)*2.5  7.5.8*(3.87-0.13)+4.2*3.7  8.8/9*[15/16*(7/16-1/4)/1/2]  9.[5 1/2-1.04*(1 2/3+5/6)]/2.9  10.6 3/7 /3/7-[(7-0.5)*1/4]  11.(0.75+0.2)/0.25*25%+12/0.75+7.2/2.4  12.1.21*42-(4.46+0.14)*1375+450/18*25 13.1+0.45/0.9-0.75-168.1/(4.3*2-0.4)  14.605*8+3.5-44+10.9-(6.6+0.125/12.5%)  26.45×2/3+1/3×15 27.7/19+12/19×5/6 28.1/4+3/4÷2/3 29.8/7×21/16+1/2 30.101×1/5–1/5×21 31.50+160÷40(58+370)÷(64-45) 32.120-144÷18+35 33.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.95÷(64-45) 36.178-145÷5×6+42 37.812-700÷(9+31×11) 38.85+14×(14+208÷26) 39.(284+16)×(512-8208÷18) 15.56*(56-65)*[0.325-62/30+(56/8)-65 ]  16.4/7*5/9 + 3/7*5/9-3/4 * 8/9 - 1/3  17.50+160/40 *(58+370)/(64-45)  18.347+45*2-4160÷52 19.3/7 * 49/9 - 4/3  20.8/9 * 15/36 + 1/27  21.20-8×2÷4420×(13+57)×90 22.66×38-987÷21 23.196÷4+56×1216×50-36÷4 24.(73+65)÷(210-164) 25、 40.120-36×4÷18+35 41.0.12× 4.8÷0.12×4.8 42.(3.2×1.5+2.5)÷1.6 43.6-1.6÷444.7.2÷0.8-1.2×5 44.3.2×(1.5+2.5)÷1.6 45.6.5×(4.8-1.2×4) 46.10.15-10.75×0.4-5.7 47.5.8×(3.87-0.13)+4.2×3.74 48、 49、 50.(13+47)×(52-18) 1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100) 2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100) 3.8+2-8+2 4.25*4/25*4 5.7.26-(5.26-1.5) 6.286+198 7(136+64)×(65-345÷23) 8(1024+4370)÷(24+38) 9.5.8×(3.87-0.13)+4.2×3.74 10..32.52-(6+9.728÷3.2)×2.5 11..[(7.1-5.6)×0.9-1.15] ÷2.5 12、 13、 14.85+14×(14+208÷26) 15.(284+16)×(512-8208÷18) 16.120-36×4÷18+35 17.31×5/6–5/6 18.9/7-(2/7–10/21) 19.5/9×18–14×2/7 20.3.2×(1.5+2.5)÷1.6 21. 22. 43.0.12× 4.8÷0.12×4.8 23.5.8×(3.87-0.13)+4.2×3.74 24.32.52-(6+9.728÷3.2)×2.5 25.(136+64)×(65-345÷23) 26.16×4+6×3 27.39÷3+48÷6 28.24×4-42÷3 29.7×6-12×3 30.12×6÷7.2-6 31.(1.2+ 1.8)×4.51025-768÷32 32.0.25×80-0.45÷0.9 33.1025-768÷32 34.1/2×1/5 35.600-420/12 36.344/3.6-5.4*0.25 37.16/2+30/2+90/6 38.3001-1998. 39.5000-105*34 40.0.15/0.25+0.75*1.2 41.(1/2+1/3+1/4)*0.24 42.(25+4)*4 43.300-4263/21 44.0.81/0.25+5.96 45.403÷13×27 46.1.5×4.2-0.75÷0.25 47.3.27×4 +3.27×5.7 48.32.52-(6+9.728÷3.2)×2.5 49. 6 ×( 1/2 + 2/3 ) 50. 8 × 4/5 + 8 × 11/5 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、6.5×(4.8-1.2×4)= 18、 19. 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 34.50+160÷40 35.120-144÷18+35 36.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.95÷(64-45) 39.178-145÷5×6+42 40.812-700÷(9+31×11) 41.85+14×(14+208÷26) 42.(6.8-6.8×0.55)÷8.5 43.120-36×4÷18+35 44.(58+37)÷(64-9×5) 45.(6.8-6.8×0.55)÷8.5 46.0.12×4.8÷0.12×4.8 47.(3.2×1.5+2.5)÷1.6 48.6-1.6÷4 49.7.2÷0.8-1.2×5 50. 1. 3/7 × 49/9 - 4/3 2. 8/9 × 15/36 + 1/27 3. 12× 5/6 – 2/9 ×3 4. 8× 5/4 + 1/4 5. 6÷ 3/8 – 3/8 ÷6 6. 4/7 × 5/9 + 3/7 × 5/9 7. 5/2 -( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9 × 5/6 + 5/6 10. 3/4 × 8/9 - 1/3 11. 7 × 5/49 + 3/14 12. 6 ×( 1/2 + 2/3 ) 13. 8 × 4/5 + 8 × 11/5 14. 31 × 5/6 – 5/6 15. 9/7 - ( 2/7 – 10/21 ) 16. 5/9 × 18 – 14 × 2/7 17. 4/5 × 25/16 + 2/3 × 3/4 18. 14 × 8/7 – 5/6 × 12/15 19. 17/32 – 3/4 × 9/24 20. 3 × 2/9 + 1/3 21. 5/7 × 3/25 + 3/7 22. 3/14 ×× 2/3 + 1/6 23. 1/5 × 2/3 + 5/6 24. 9/22 + 1/11 ÷ 1/2 25. 5/3 × 11/5 + 4/3 26. 45 × 2/3 + 1/3 × 15 27. 7/19 + 12/19 × 5/6 28. 1/4 + 3/4 ÷ 2/3 29. 8/7 × 21/16 + 1/2 30. 101 × 1/5 – 1/5 × 21 31.50+160÷40 32.120-144÷18+35 33.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.95÷(64-45) 36.178-145÷5×6+42 420+580-64×21÷28 37.812-700÷(9+31×11) 38.85+14×(14+208÷26) 39.(284+16)×(512-8208÷18) 40.120-36×4÷18+35 41.(58+37)÷(64-9×5) 42、 43、 44.(3.2×1.5+2.5)÷1.6 45.6-1.6÷4= 46.7.2÷0.8-1.2×5 47.6.5×(4.8-1.2×4) 48.10.15-10.75×0.4-5.7 49.5.8×(3.87-0.13)+4.2×3.74 50.32.52-(6+9.728÷3.2)×2.5 51、 52、 53.[(7.1-5.6)×0.9-1.15]÷2.5 54.5.4÷[2.6×(3.7-2.9)+0.62] 55.12×6÷(12-7.2)-6 56.12×6÷7.2-6 57.0.68×1.9+0.32×1.9 58.58+370)÷(64-45) 59.420+580-64×21÷28 60.136+6×(65-345÷23) 61.15-10.75×0.4-5.7 62.18.1+(3-0.299÷0.23)×1 63.(6.8-6.8×0.55)÷8.5 64.0.12×4.8÷0.12×4.8 65.(3.2×1.5+2.5)÷1.6 66.3.2×6+(1.5+2.5)÷1.6 67.0.68×1.9+0.32×1.9 68.10.15-10.75×0.4-5.7 69.5.8×(3.87-0.13)+4.2×3.74 70.32.52-(6+9.728÷3.2)×2.5 71.[(7.1-5.6)×0.9-1.15]÷2.5 72.5.4÷[2.6×(3.7-2.9)+0.62] 73.12×6÷(12-7.2)-6 74.12×6÷7.2-6 75.33.02-(148.4-90.85)÷2.5 76. 31 × 5/6 – 5/6 77. 9/7 - ( 2/7 – 10/21 ) 78. 5/9 × 18 – 14 × 2/7 79. 4/5 × 25/16 + 2/3 × 3/4 80. 14 × 8/7 – 5/6 × 12/15 81. 17/32 – 3/4 × 9/24 82. 3 × 2/9 + 1/3 83.20-8×2÷4420×(13+57)×90 84.66×38-987÷21 85.196÷4+56×1216×50-36÷4 86.(73+65)÷(210-164) 87.(13+47)×(52-18) 88.(1024+4370)÷(24+38) 89.45×2/3+1/3×15 90.27.7/19+12/19×5/6 91.1/4+3/4÷2/3 92.8/7×21/16+1/2 93.101×1/5–1/5×21 94.50+160÷40(58+370)÷(64-45) 95.120-144÷18+35 96.347+45×2-4160÷52 97(58+37)÷(64-9×5) 98.95÷(64-45) 99.178-145÷5×6+42420+580-64×21÷28 100.812-700÷(9+31×11) 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) 26.30.56÷4+72÷8 27.19.6-1.6÷4+ 5.38+7 28.5+21*8/2-6-59 29.68/21-8-11*8+61 30.1/2+3+5/6-7/12 31.75÷〔138÷(100-54)〕 32、 33、 34.85×(95-1440÷24) 35.80400-(4300+870÷15) 36.240×78÷(154-115) 37.1437×27+27×563〔75-(12+18)〕÷15 38.2160÷〔(83-79)×18〕 39.325÷13×(266-250) 40.85×(95-1440÷24) 41.280+840÷24×5 42.58870÷(105+20×2) 43.1437×27+27×563 44.81432÷(13×52+78) 45.[37.85-(7.85+6.4)]×30 46.156×[(17.7-7.2)÷3] 47.(947-599)+76×64 48.36×(913-276÷23) 49.[192-(54+38)]×67 50.[(7.1-5.6)×0.9-1.15]÷2.581432÷(13×52+78) (58+370)÷(64-45) 13、 14、 15、 16、 20、 21、 22、 23、 24、 25、 26、 27、 (58+370)÷(64-45) 5.4÷[2.6×(3.7-2.9)+0.62] (136+64)×(65-345÷23) (947-599)+76×6460-(9.5+28.9)]÷0.182.881÷0.43-0.24×3.520×[(2.44-1.8)÷0.4+0.15] 28-(3.41.25×2.4)0.8×〔15.5-(3.215.79)〕(31.83.2×4)÷5194-64.8÷1.8×0.936.72÷4.25×9.93.416÷(0.016×35)0.8×[(10-6.76)÷1.2] (136+64)×(65-345÷23) (6.8-6.8×0.55)÷8.5 0.12×4.8÷0.12×4.8 (58+37)÷(64-9×5) 812-700÷(9+31×11) (3.2×1.5+2.5)÷1.6 85+14×(14+208÷26) 120-36×4÷18+35 (284+16)×(512-8208÷18 )9.72×1.6-18.305÷7 4/7÷[1/3×(3/5-3/10)] (4/5+1/4)÷7/3+7/10 12.78-0÷(13.4+156.6) 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 3.2×(1.5+2.5)÷1.6 85+14×(14+208÷26) (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 (284+16)×(512-8208÷18) 0.12×4.8÷0.12×4.8(3.2×1.5+2.5)÷1.6 120-36×4÷18+3510.15-10.75×0.4-5.7 5.8×(3.87-0.13)+4.2×3.74347+45×2-4160÷52 32.52-(6+9.728÷3.2)×2.587(58+37)÷(64-9×5) [(7.1-5.6)×0.9-1.15]÷2.5(3.2×1.5+2.5)÷1.6 5.4÷[2.6×(3.7-2.9)+0.62]12×6÷(12-7.2)-6 3.2×6+(1.5+2.5)÷1.6(3.2×1.5+2.5)÷1.6 5.8×(3.87-0.13)+4.2×3.74 33.02-(148.4-90.85)÷2.5 420+580-64×21÷28 1.3/7×49/9-4/3 2.8/9×15/36+1/27 3.12×5/6–2/9×3 4.8×5/4+1/4 5.6÷3/8–3/8÷6 6.4/7×5/9+3/7×5/9 7.5/2-(3/2+4/5) 8.7/8+(1/8+1/9) 9.9×5/6+5/6 10.3/4×8/9-1/3 11.7×5/49+3/14 12.6×(1/2+2/3) 13.8×4/5+8×11/5 14.31×5/6–5/6 15.9/7-(2/7–10/21) 16.5/9×18–14×2/7 17.4/5×25/16+2/3×3/4 18.14×8/7–5/6×12/15 19.17/32–3/4×9/24 20.3×2/9+1/3 21.5/7×3/25+3/7 22.3/14××2/3+1/6 23.1/5×2/3+5/6 24.9/22+1/11÷1/2 25.5/3×11/5+4/3 26.45×2/3+1/3×15 27.7/19+12/19×5/6 28.1/4+3/4÷2/3 29.8/7×21/16+1/2 30.101×1/5–1/5×21 31.50+160÷40(58+370)÷(64-45) 32.120-144÷18+35 33.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.95÷(64-45) 36.178-145÷5×6+42420+580-64×21÷28 37.812-700÷(9+31×11)(136+64)×(65-345÷23) 38.85+14×(14+208÷26) 39.(284+16)×(512-8208÷18) 40.120-36×4÷18+35 41.(58+37)÷(64-9×5) 42.(6.8-6.8×0.55)÷8.5 43.0.12×4.8÷0.12×4.8 44.(3.2×1.5+2.5)÷1.6(2)3.2×(1.5+2.5)÷1.6 45.6-1.6÷4=5.38+7.85-5.37= 46.7.2÷0.8-1.2×5=6-1.19×3-0.43= 47.6.5×(4.8-1.2×4)=0.68×1.9+0.32×1.9 48.10.15-10.75×0.4-5.7 49.5.8×(3.87-0.13)+4.2×3.74 50.32.52-(6+9.728÷3.2)×2.5 51.-5+58+13+90+78-(-56)+50 52.-7*2-57/(3 53.(-7)*2/(1/3)+79/(3+6/4) 54.123+456+789+98/(-4) 55.369/33-(-54-31/15.5) 56.39+{3x[42/2x(3x8)]} 57.9x8x7/5x(4+6) 9405-2940÷28×21  920-1680÷40÷7  690+47×52-398 97-12×6+43 26×4-125÷5 148+3328÷64-75 360×24÷32+730  2100-94+48×54 51+(2304-2042)×23  4215+(4361-716)÷81  (247+18)×27÷25 36-720÷(360÷18)  1080÷(63-54)×80 (528+912)×5-6178 8528÷41×38-904  264+318-8280÷69  (174+209)×26- 9000 814-(278+322)÷15 1406+735×9÷45  3168-7828÷38+504 796-5040÷(630÷7) 285+(3000-372)÷36 546×(210-195)÷30 3/7 × 49/9 - 4/3 8/9 × 15/36 + 1/27 12× 5/6 – 2/9 ×3 6÷ 3/8 – 3/8 ÷6 4/7 × 5/9 + 3/7 × 5/9 5/2 -( 3/2 + 4/5 ) 7/8 + ( 1/8 + 1/9 )  9 × 5/6 + 5/6 3/4 × 8/9 - 1/3 7 × 5/49 + 3/14  6 ×( 1/2 + 2/3 ) 8 × 4/5 + 8 × 11/5 31 × 5/6 – 5/6 9/7 - ( 2/7 – 10/21 )  5/9 × 18 – 14 × 2/7 4/5 × 25/16 + 2/3 × 3/4  14 × 8/7 – 5/6 × 12/15  17/32 – 3/4 × 9/24 3 × 2/9 + 1/3  5/7 × 3/25 + 3/7  3/14 ×× 2/3 + 1/6  1/5 × 2/3 + 5/6 9/22 + 1/11 ÷ 1/2  5/3 × 11/5 + 4/3 45 × 2/3 + 1/3 × 15 7/19 + 12/19 × 5/6  1/4 + 3/4 ÷ 2/3 8/7 × 21/16 + 1/2  101 × 1/5 – 1/5 × 21 50+160÷40 (58+370)÷(64-45) 120-144÷18+35 347+45×2-4160÷52 95÷(64-45) 178-145÷5×6+42 420+580-64×21÷28 812-700÷(9+31×11)  (136+64)×(65-345÷23) 85+14×(14+208÷26) (284+16)×(512-8208÷18) 120-36×4÷18+35 (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 7.2÷0.8-1.2×5=  6-1.19×3-0.43= 6.5×(4.8-1.2×4)=  0.68×1.9+0.32×1.9
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