简便运算题.docx

1、简便运算题简便运算题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 1

2、8 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 3

3、2.120-144?18+35 33.347+452-4160?52 34(58+37)?(64-95) 35.95?(64-45) 36.178-145?56+42 37.812-700?(9+3111) 38.85+14(14+208?26) 39.(284+16)(512-8208?18) 40.120-364?18+35 41.(58+37)?(64-95) 42.(6.8-6.80.55)?8.5 43.0.12 4.8?0.124.8 44.(3.21.5+2.5)?1.6 45.6-1.6?4= 5.38+7.85-5.37= 46.7.2?0.8-1.25= 6-1.193-0

4、.43= 47.6.5(4.8-1.24)= 49.5.8(3.87-0.13)+4.23.74 50.32.52-(6+9.728?3.2)2.5 51.(7.1-5.6)0.9-1.15 ?2.5 52.5.4?2.6(3.7-2.9)+0.62 53.126?(12-7.2)-6 (54)126?7.2-6 (55)0.681.9+0.321.9 (56)(58+370)?(64-45) (57)420+580-6421?28 (58)(136+64)(65-345?23) (59)48.10.15-10.750.4-5.7 1.18.1，(3,0.299?0.23)1 2.(6.8-6

5、.80.55)?8.5 3.0.12 4.8?0.124.8 4.(3.21.5+2.5)?1.6 (2)3.2(1.5+2.5)?1.6 5.6-1.6?4= 5.38+7.85-5.37= 6.7.2?0.8-1.25= 6-1.193-0.43= 7.6.5(4.8-1.24)= 0.681.9+0.321.9 8.10.15-10.750.4-5.7 9.5.8(3.87-0.13)+4.23.74 10.32.52-(6+9.728?3.2)2.5 11.(7.1-5.6)0.9-1.15 ?2.5 12.5.4?2.6(3.7-2.9)+0.62 13.126?(12-7.2)-6

6、 14.126?7.2-6 15.33.02,(148.4,90.85)?2.5 158+262+138 375+219+381+225 5001,247,1021,232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755,(2187+755) 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

7、. 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

8、/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+452

9、-4160?52 37(58+37)?(64-95) 38.95?(64-45) 39.178-145?56+42 40.812-700?(9+3111) 41.85+14(14+208?26) 43.120-364?18+35 44.(58+37)?(64-95) 45.(6.8-6.80.55)?8.5 46.0.12 4.8?0.124.8 47.(3.21.5+2.5)?1.6 48.6-1.6?4= 5.38+7.85-5.37= 49.7.2?0.8-1.25= 6-1.193-0.43= 50.6.5(4.8-1.24)= 51.5.8(3.87-0.13)+4.23.74 52

10、.32.52-(6+9.728?3.2)2.5 53.(7.1-5.6)0.9-1.15 ?2.5 54.5.4?2.6(3.7-2.9)+0.62 55.126?(12-7.2)-6 56.126?7.2-6 57.0.681.9+0.321.9 58.58+370)?(64-45) 59.420+580-6421?28 60.136+6(65-345?23) 15-10.750.4-5.7 62.18.1，(3,0.299?0.23)1 63.(6.8-6.80.55)?8.5 64.0.12 4.8?0.124.8 65.(3.21.5+2.5)?1.6 66.3.26+(1.5+2.5

11、)?1.6 67.0.681.9+0.321.9 68.10.15-10.750.4-5.7 69.5.8(3.87-0.13)+4.23.74 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 73.126?(12-7.2)-6 74.126?7.2-6 75.33.02,(148.4,90.85)?2.5 1) 76.(25%-695%-12%)*36 77./4*3/5+3/4*2/5 78.1-1/4+8/9/7/9 79.+1/6/3/24+2/21 80./15*3/5 81.3

12、/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.+5268.32-2569 86.3+456-52*8 87.5%+6325 88./2+1/3+1/4 2) 89+456-78 3) 5%+. 3/7 49/9 - 4/3 4) 9 15/36 + 1/27 5) 2 5/6 2/9 3 6) 3 5/4 + 1/4 7) 94? 3/8 3/8 ?6 8) 95/7 5/9 + 3/7 5/9 9) 6/2 -( 3/2 + 4/5 ) 10) 8 + ( 1/8 + 1/9 ) 11) 8

13、5/6 + 5/6 12) 1/4 8/9 - 1/3 13) 10 5/49 + 3/14 14) 1.5 ( 1/2 + 2/3 ) 15) 2,9 4/5 + 8 11/5 16) 3.1 5/6 5/6 17) 4/7 - ( 2/7 10/21 ) 18) 19 18 14 2/7 19) 5 25/16 + 2/3 3/4 20) 4 8/7 5/6 12/15 21) 7/32 3/4 9/24 22) 1、 2/3?1/2,1/42/5 2、 2,6/13?9/26,2/3 3、 2/9，1/2?4/5，3/8 4、 10?5/9，1/64 5、 1/22/5，9/10?9/2

14、0 6、 5/93/10，2/7?2/5 7、 1/2，1/44/5,1/8 8、 3/45/74/3,1/2 9、 23,8/91/27?1/27 2/5?4 10、 85/6，11、 1/2，3/45/124/5 12、 8/93/4,3/8?3/4 13、 5/8?5/4，3/23?9/11 23) 1.22.5+0.82.5 24) 8.91.25-0.91.25 25) 12.57.40.8 26) 9.96.4-(2.5+0.24)(27) 6.59.5+6.50.5 0.351.6+0.353.4 0.258.64 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.93-(25-2.5)241846-620-380 4.846+4.854 0.8+0.82.5 1.253.682.5-12.52.4 2812.5-12.520 23.65-(3.07+3.65) (4+0.40.25)871.25 1.6599+1.65 27.85-(7.85+3.4) 481.25+501.250.28 7.89.9+0.78