奥数题2+3-4+5+6-7+8+9-10+11+12-13+...+101+102-103
2017-07-29
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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+42 420+580-64×21÷28 37.812-700÷(9+31×11) 38.(136+64)×(65-345÷23) 39.85+14×(14+208÷26) 40.(284+16)×(512-8208÷18) 41.120-36×4÷18+35 42.(58+37)÷(64-9×5) 43.31×870+13×310 44. 4×(25×65+25×28) 45.12000×24÷(24-4) 46.138×25×4 47.(13×125)×(3×8) 48.(12+24+80)×50 49.704×25 50.25×32×125 51.32×(25+125) 52.88×125 53.102×76 54. 58×98 55.178×101-178 56. 84×36+64×84 57.75×99+2×75 58.83×102-83×2 59.98×199 60.123×18-123×3+85×123 61. 50×(34×4)×3 62.25×(24+16) 63.178×99+178 64.79×42+79+79×57 65. 7300÷25÷4 66. 8100÷4÷75 67.16800÷120 68. 30100÷2100 69. 32000÷400 70. 49700÷700 71.1248÷24 72. 3150÷15 73. 4800÷25 74.21500÷125 75.2356-(1356-721) 76.1235-(1780-1665) 77.75×27+19×2 5 78.158+262+138 79. 375+219+381+225 80.5001-247-1021-232 80.(181+2564)+2719 82. (375+1034)+(966+125) 83. (2130+783+270)+1017 84. 99+999+9999+99999 85.755-(2187+755) 86. 2214+638+286 87.3065-738-1065 88. 899+344 89. 2357-183-317-357 90. 2365-1086-214 91. 497-299 92.2370+1995 93. 3999+498 94.1883-398 95. 12×25 96.75×24 97.181+2564)+2719 98.378+44+114+242+222 99.276+228+353+219 100. (375+1034)+(966+125) 101.2378+444+114+3242+222 102. 2576+2728+353+2119 求采纳
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