五年級(jí)下脫式計(jì)算.docx

脫式計(jì)算 12 / 121. 3.8+4.29+2.71+6.22. 12.50.783.223. 12.899+12.84. 1.253.22.55. 12.610112.66. 38.52.50.47. 6.710.18. 6.51019. 4.859810. 1.22.5+0.82.511. 2817.5287.512. 4.812.513. 6/72/151/713/1514. 19/215/73/1415. 2/35/92/35/916. 8/9+（1/41/9）+3/417. 0.58+5/13+1.12+8/1318. 11-4/11-7/1119. 22+5511-2/820. 1/7+33.5+6/7-3.521. 7.09-5/12+12.03-7/1222. 14/15（6/15 +1/3）23. 13/50.81 0.1924. 7/8+1/8 5/9 4/9 25. 5 （0.5 3/10 ）26. 7.68 - 7.680.527. 5.24.83.528. 30.814(9.851.07)29. 60(9.528.9)0.1830. 2.8810.430.243.531. 20(2.441.8)0.40.1532. 28-(3.4+1.252.4) 33. 2.557.1+2.457.134. 7779+1111335. 0.815.5-(3.21+5.79)36. （31.8+3.24）5 37. 31.54(6+3)38. 0.64257.8+2.2 39. 22.5+2.5240. 19464.81.80.941. 36.724.259.942. 5180705643. 242.42.50.844. (4121+2389)7 45. 67115-974 46. 46912+1492 47. 405(3213-3189)48. 3.416（0.01635）49. 0.8(106.76)1.250. 19.46.12.351. 5.670.2-0.6252. 18.10.92+3.9353. 0.0430.24+0.87554. 0.40.70.2555. 0.7510256. 100-56.2357. 0.78+5.436+158. 4.070.86+9.12.559. 30.814(9.851.07) 60. 60(9.528.9)0.1861. 2.8810.430.243.562. 20(2.441.8)0.40.1563. 28-(3.4+1.252.4) 64. 2.557.1+2.457.165. 7779+1111366. 0.815.5-(3.21+5.79)67. （31.8+3.24）5 68. 31.54(6+3)69. 0.64257.8+2.2 70. 22.5+2.5271. 19464.81.80.972. 36.724.259.973. 5180705674. 242.42.50.875. (4121+2389)7 76. 67115-974 77. 46912+1492 78. 405(3213-3189)79. 3.416（0.01635）80. 0.8(106.76)1.281. 19.46.12.382. 5.670.2-0.6283. 18.10.92+3.9384. 0.0430.24+0.87585. 0.40.70.2586. 0.7510287. 100-56.2388. 1/3 + 3/4 + 1/589. 3/8 + 8/3 - 1/290. 5/6 + 1/12 + 3/491. 19/8 - 1/2 - 3/492. 7/25 + 3/10 - 2/593. 8/15 + 7/3- 8/594. 2/3+1/6+3/24+2/21 95. 52-(32+45) 96. 78+18+19 97. 97-(27-1021) 98. 240400+12400-150400 99. 23+59-23+59 100. 186240+88240+252240 101. 67+215+17+1315 102. 89+14+19+34103. 23+59-23+59 104. 7/12-5/24+2/3105. 1/2-1/3-1/61