1、五年级巧算题5.41.8+2401.5 900072(1.250.78) 61-(1.25+2.50.7) (10-0.8)+9.85-20.125 32*3.25678 33-5 12+5268.32-2569 123+456-52*8 789+456-78 181+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) 2214+638+286 30657381065 138254 (13125)(38) (
2、12+24+80)502532125 32(25+125) 178101178 8436+6484 7599+275 83102832 123181233+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 7300254 8100475 158+262+138 375+219+381+225 50012471021232 (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(
3、2187+755) 2214+638+286 30657381065 2357183317357 23651086214 138254 (13125)(38) (12+24+80)50 2532125 32(25+125) 178101178 8436+6484 7599+275 83102832 123181233+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 7300254 8100475 2356(1356721) 1235(17801665) 7527+192 5 31870+13310 4(2565+2528) 2.73 0.89 1
4、.27 4.37 0.28 1.63 5.72 10 0.432 2.568 9.3 5.26 2.74 13.4(3.45.2) 14.9(5.24.9) 18.32 5.47 4.32 17.29 5.28 6.29 25 6.8 0.04 0.25 32 0.125 6.4 1.25 12.5 3.28 5.7 6.72 5.7 2.1 99 2.1 1.7 9.9 0.17 23 0.1 2.3 9.9 0.18 4.26 0.18 4.26 0.58 1.3 0.58 1.3 7.3 4 2.7 0.25 3.75 0.5 2.75 2 5.26 0.125 2.74 8 9.5 (
5、1.9 8) 12.8 (0.4 1.6) 930 0.6 5 63.4 2.5 0.4 (7.7 1.54) 0.7 (11.7 9.9) 0.9 6.94.83.1 15.89(6.755.89) 7.852.340.854.66 35.61.815.67.2 13.75(3.756.48) 47.87.45+2.55 66.868.661.34 0.2516.24 0. 2532 0.125 2 .5 (4 +0.4) (1.250.125)8 56.59.956.5 5.411-5.4 3.834.563.835.44 7.0910.80.87.09 3.654.736.50.37 1
6、3.70.253.74 10.716.1-1.110.7 +10.7 5 3.9(1.35) 63.42.50.4 (7.71.4)0.7 18 (9-3)4.025.40.98 5.171.83.2 13.75(3.756.48) 3.687.562.68 7.852.340.854.66 35.61.815.67.2 3.822.90.189.1 9.64.83.6 7.140.532.47 5.272.860.661.63 13.354.682.65 47.87.45+8.8 0.398+0.36+3.64 15.75+3.590.59+14.25 42.5(6.071.13) 73.8
7、1.6413.85.36 66.868.661.34 0.2516.24 3.723.56.283.5 36.83.96.1 2 5.48(9.40.52) 4.87.8780.52 3.6102 6.40.253.64 324.90.9 4.84.80.5 (1.250.125)8 4.8100.1 56.59.956.5 7.0910.80.87.09 4.23.5 3201.258 18.769.918.76 3.522.50.4 4.780.23.44 3.94.16.15.9 0.491.4 1.252.532 3.60.62 3.6510.1 3.63.60.8 15.20.254
8、 5.63.5 9.60.80.4 4.2994.2 0.89100.1 146.5(2346.5) 17.8(1.784) 5.8324.27 (45.932.7)80.125 9.7999.7 4.3612.58 15.613.115.615.62.1 0.65101 27.53.77.53.7 8.542.50.4 3.834.563.835.44 9999+99.99+999.9+9.999 4.025.40.98 5.171.83.2 13.75(3.756.48) 3.687.562.68 7.852.340.854.66 35.61.815.67.2 3.822.90.189.1
9、 9.64.83.6 7.140.532.47 5.272.860.661.63 13.354.682.65 47.87.45+8.8 0.398+0.36+3.64 15.75+3.590.59+14.25 42.5(6.071.13) 73.81.6413.85.36 66.868.661.34 0.2516.24 3.723.56.283.5 36.83.96.1 2 5.48(9.40.52) 4.87.8780.52 3.6102 6.40.253.64 324.90.9 4.84.80.5 (1.250.125)8 4.8100.1 56.59.956.5 7.0910.80.87
10、.09 4.23.5 3201.258 18.769.918.76 3.522.50.4 4.780.23.44 3.94.16.15.9 0.491.4 1.252.532 3.60.62 3.6510.1 3.63.60.8 15.20.254 5.63.5 9.60.80.4 4.2994.2 0.89100.1 146.5(2346.5) 17.8(1.784) 5.8324.27 (45.932.7)80.125 9.7999.7 4.3612.58 15.613.115.615.62.1 0.65101 27.53.77.53.7 8.542.50.4 3.834.563.835.
11、44 一:1. 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/
12、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 31.5016040 (58+370)(64-45
13、) 32.120-14418+35 33.347+452-416052 34(58+37)(64-95) 35.95(64-45) 36.178-14556+42 420+580-642128 37.812-700(9+3111) (136+64)(65-34523) 38.85+14(14+20826) 39.(284+16)(512-820818) 40.120-36418+35 41.(58+37)(64-95) 42.(6.8-6.80.55)8.5 43.0.12 4.80.124.8 44.(3.21.5+2.5)1.6 (2)3.2(1.5+2.5)1.6 45.6-1.64=
14、5.38+7.85-5.37= 46.7.20.8-1.25= 6-1.193-0.43= 47.6.5(4.8-1.24)= 0.681.9+0.321.9 48.10.15-10.750.4-5.7 49.5.8(3.87-0.13)+4.23.74 50.32.52-(6+9.7283.2)2.5 二:1X-5.7=2.15 215 5X-2X=18 33X+0.7=5 43.52= 4.2+x 5.261.5= 2x+10 6.0.516160.2=4x 7.13 9.25X=0.403 8.16.9X=0. 3 9.X0.5=2.6 10.x1333 11.3 5x80 12.1.8
15、 +6x54 13.6.7x 60.36.7 14.9 4x 40 15.80*3.8=X*2.6 16.3X-X=24 17.3X-X=42 18.2X=42 19.X9988 20.30X1 21.654+X999 22.88*X88 23.99*X99 24.95*X9025 25.85*X7225 26.75*X5625 27.45*X2025 28.25*X625 29.15*X225 30.65*X4225 8436+6484 7599+275 83102832 123181233+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 73
16、00254 8100475 2356(1356721) 1235(17801665) 7527+192 5 31870+13310 4(2565+2528) 2.73 0.89 1.275.41.8+2401.5 900072(1.250.78) 61-(1.25+2.50.7) (10-0.8)+9.85-20.125 32*3.25678 33-5 12+5268.32-2569 123+456-52*8 789+456-78 181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+2
17、70)+1017 99+999+9999+99999 7755(2187+755) 2214+638+286 30657381065 138254 (13125)(38) (12+24+80)502532125 32(25+125) 178101178 8436+6484 7599+275 83102832 123181233+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 7300254 8100475 158+262+138 375+219+381+225 50012471021232 (181+2564)+2719 378+44+114+2
18、42+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755(2187+755) 2214+638+286 30657381065 2357183317357 23651086214 138254 (13125)(38) (12+24+80)50 2532125 32(25+125) 178101178 8436+6484 7599+275 83102832 123181233+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 73002
19、54 8100475 2356(1356721) 1235(17801665) 7527+192 5 31870+13310 4(2565+2528) 2.73 0.89 1.27 4.37 0.28 1.63 5.72 10 0.432 2.568 9.3 5.26 2.74 13.4(3.45.2) 14.9(5.24.9) 18.32 5.47 4.32 17.29 5.28 6.29 25 6.8 0.04 0.25 32 0.125 6.4 1.25 12.5 3.28 5.7 6.72 5.7 2.1 99 2.1 1.7 9.9 0.17 23 0.1 2.3 9.9 0.18
20、4.26 0.18 4.26 0.58 1.3 0.58 1.3 7.3 4 2.7 0.25 3.75 0.5 2.75 2 5.26 0.125 2.74 8 9.5 (1.9 8) 12.8 (0.4 1.6) 930 0.6 5 63.4 2.5 0.4 (7.7 1.54) 0.7 (11.7 9.9) 0.9 6.94.83.1 15.89(6.755.89) 7.852.340.854.66 35.61.815.67.2 13.75(3.756.48) 47.87.45+2.55 66.868.661.34 0.2516.24 0. 2532 0.125 2 .5 (4 +0.4
21、) (1.250.125)8 56.59.956.5 5.411-5.4 3.834.563.835.44 7.0910.80.87.09 3.654.736.50.37 13.70.253.74 10.716.1-1.110.7 +10.7 5 3.9(1.35) 63.42.50.4 (7.71.4)0.7 18 (9-3) 4.025.40.98 5.171.83.2 13.75(3.756.48) 3.687.562.68 7.852.340.854.66 35.61.815.67.2 3.822.90.189.1 9.64.83.6 7.140.532.47 5.272.860.66
22、1.63 13.354.682.65 47.87.45+8.8 0.398+0.36+3.64 15.75+3.590.59+14.25 42.5(6.071.13) 73.81.6413.85.36 66.868.661.34 0.2516.24 3.723.56.283.5 36.83.96.1 2 5.48(9.40.52) 4.87.8780.52 3.6102 6.40.253.64 324.90.9 4.84.80.5 (1.250.125)8 4.8100.1 56.59.956.5 7.0910.80.87.09 4.23.5 3201.258 18.769.918.76 3.
23、522.50.4 4.780.23.44 3.94.16.15.9 0.491.4 1.252.532 3.60.62 3.6510.1 3.63.60.8 15.20.254 5.63.5 9.60.80.4 4.2994.2 0.89100.1 146.5(2346.5) 17.8(1.784) 5.8324.27 (45.932.7)80.125 9.7999.7 4.3612.58 15.613.115.615.62.1 0.65101 27.53.77.53.7 8.542.50.4 3.834.563.835.44 9999+99.99+999.9+9.999 4.025.40.9
24、8 5.171.83.2 13.75(3.756.48) 3.687.562.68 7.852.340.854.66 35.61.815.67.2 3.822.90.189.1 9.64.83.6 7.140.532.47 5.272.860.661.63 13.354.682.65 47.87.45+8.8 0.398+0.36+3.64 15.75+3.590.59+14.25 42.5(6.071.13) 73.81.6413.85.36 66.868.661.34 0.2516.24 3.723.56.283.5 36.83.96.1 2 5.48(9.40.52) 4.87.8780
25、.52 3.6102 6.40.253.64 324.90.9 4.84.80.5 (1.250.125)8 4.8100.1 56.59.956.5 7.0910.80.87.09 4.23.5 3201.258 18.769.918.76 3.522.50.4 4.780.23.44 3.94.16.15.9 0.491.4 1.252.532 3.60.62 3.6510.1 3.63.60.8 15.20.254 5.63.5 9.60.80.4 4.2994.2 0.89100.1 146.5(2346.5) 17.8(1.784) 5.8324.27 (45.932.7)80.12
26、5 9.7999.7 4.3612.58 15.613.115.615.62.1 0.65101 27.53.77.53.7 8.542.50.4 3.834.563.835.4411/14-3/14+1/8 =4.05-(2.8+0.7) =0.55 4.05-2.8-0.7 =4.05-(2.8+0.7) =0.55 212+198 =(200+12)+(100+98) =200+12+100+98 =12+98+100+200 =110+100+200 =4101.(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 7.314-202 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
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