有理数混合运算计算题

1.计算 -2.5×(-4.8)×(0.09)?(-0.27); (-3)×(-5)2; (-3)2-(-6); (-4×32)-(-4×3)2( (-8?23)-(-8?2)3((-2)2-(-52)×(-1)5+87?(-3)×(-1)4( -9+5×(-6)-(-4)2?(-8); 2×(-3)3-4×(-3)+15( -8+4?(-2); 6-(-12)?(-3); 3•(-4)+(-28)?7; (-7)(-5)-90?(-15); 1?(-1)+0?4-(-4)(-1); 18+32?(-2)3-(-4)2×5( (-12)2?(-4)3-2×(-1)2n-1; 〔(-2)4+(-4)2•(-1)7〕2m•(53+35)( (,6),(,7)+(,5),(+9) (,5)×(,3 ),15×1 +〔 ,( )×24〕 (-2)3; -7+3-6; (-3)×(-8)×25; (-616)?(-28); -100-27; (-1)101; (-2)4; (-4)2; (3.4×104?(-5)( 2..计算: (1)-2.5+(-1/5) (2) 0.4-(-1/4)+1/6 (3)1/3-(-5/6)+2/3 (4) 1/3+(-1/5)+1+2/3 (5)27-18+(-7)-32 (6)0.5+(-1/4)-(-2.75)+1/2 3.计算: (1)33.1-(-22.9)+(-10.5) (2)(-8)-(-15)+(-9)-(-12) (3)-2/3+(-1/6)-(-1/4)-1/2 (4)3/5-3/2+(-11/4)+13/4 (5).125*3+125*5+25*3+25 4计算9999*3+101*11*(101-92) (23/4-3/4)*(3*6+2) 3/7 × 49/9 - 4/3 8/9 × 15/36 + 1/27 12× 5/6 – 2/9 ×3 8× 5/4 + 1/4 6? 3/8 – 3/8 ?6 4/7 × 5/9 + 3/7 × 5/9 5/2 -( 3/2 + 4/5 ) 5计算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?40 120-144?18+35 347+45×2-4160?52 (58+37)?(64-9×5) 95?(64-45) 178-145?5×6+42 812-700?(9+31×11) 85+14×(14+208?26) 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 6-1.6?4= 5.38+7.85-5.37= 7.2?0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)= 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728?3.2)×2.5 [(7.1-5.6)×0.9-1.15] ?2.5 5.4?[2.6×(3.7-2.9)+0.62] 12×6?(12-7.2)-6 12×6?7.2-6 0.68×1.9+0.32×1.9 58+370)?(64-45) 420+580-64×21?28 136+6×(65-345?23) 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 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 81.3/4/9/10-1/6 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 × 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?1/2,1/4×2/5 2、 2,6/13?9/26,2/3 3、 2/9，1/2?4/5，3/8 4、 10?5/9，1/6×4 5、 1/2×2/5，9/10?9/20 6、 5/9×3/10，2/7?2/5 7、 1/2，1/4×4/5,1/8 8、 3/4×5/7×4/3,1/2 9、 23,8/9×1/27?1/27 10、 8×5/6，2/5?4 11、 1/2，3/4×5/12×4/5 12、 8/9×3/4,3/8?3/4 13、 5/8?5/4，3/23?9/11 23) 1.2×2.5+0.8×2.5 24) 8.9×1.25-0.9×1.25 25) 12.5×7.4×0.8 26) 9.9×6.4-(2.5+0.24)(27) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.4 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×41846-620-380 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65) (4+0.4×0.25)8×7×1.25 1.65×99+1.65 27.85-(7.85+3.4) 48×1.25+50×1.25×0.2×8 7.8×9.9+0.78 (1010+309+4+681+6)×12 3×9146×782×6×854 5.15×7/8+6.1-0.60625 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) (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.[(7.1-5.6)×0.9-1.15] ?2.5 52.5.4?[2.6×(3.7-2.9)+0.62] 53.12×6?(12-7.2)-6 (4)12×6?7.2-6 102×4.5 7.8×6.9，2.2×6.9 5.6×0.25 8×(20,1.25) 1)127+352+73+44 (2)89+276+135+33 (1)25+71+75+29 +88 (2)243+89+111+57 9405-2940?28×21 920-1680?40?7 690+47×52-398 148+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 1+5/6-19/12 3x(-9)+7x(-9 (-54)x1/6x(-1/3) 1.18.1，(3,0.299?0.23)×1 2.(6.8-6.8×0.55)?8.5 3.0.12× 4.8?0.12×4.8 4.(3.2×1.5+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?0.8-1.2×5= 6-1.19×3-0.43= 7.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 8.10.15-10.75×0.4-5.7 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 12.5.4?[2.6×(3.7-2.9)+0.62] 13.12×6?(12-7.2)-6 14.12×6?7.2-6 15.33.02,(148.4,90.85)?2.5