小学五级上数学计算题巧算与速算.doc

-一、五年级简便计算题12.3×4×0.25 12.969.61.5285×10.11.2÷0.251.3×4 103×0.25 4.86.4÷8 35÷12540.5÷0.81×1.05 34.5×0.03+34.5×0.97203.472.2÷1.3×0.28×4.3×12.5 97.5÷0.39136.7 2.5×10286.4÷0.24×0.254.2÷28 11.16÷100.7(9.6+3.2)÷0.8 30094.8÷0.50.125×16 12.6÷3.59.88.7 3.2×5.611.4 0.648÷0.40.5×0.65.74×995.7489×1.1×4.7 4.753.25×2.47.6 2.7×5.4×3.93.8×1.418.2÷0.73.6×9.85-5.46 4.8×0.25 8.05×3.4+7.64.7×10.2 6.58×4.5×0.9 7.63×997.632.8×0.5+1.586.732.561.443.278×5.2+3.8×3.8+3.8 2.37×2.5×4 (6.7+6.7+6.7+6.7) ×2.5 1.5×102 9.8×25×4 2400÷16÷0.532×0.25×0.125 2.8×3.23.2×7.2 7.40.15×2.8 3.76×0.250.490.008+0.92×51.28 0.25×4.78×4 7.8÷1.3×40.65×201 7.2×0.90.01×7.2 1.2×2.50.8×2.58.6×10.1 2.5×7.1×4 5.6×(12.58.5 ÷0.85) 16.12×9916.12 (8.15.6) ×0.91 ×0.4 5.2×0.90.98.25×4.08+0.75×4.08+4.08 4.3×50×0.2 4.325.436.68 642.64×0.515.176.83.2 26×15.715.7×24 12.75(2.756.8) (2.275 0.625)×0.28 1.273.90.7316.1 3.94+34.3×0.2 12.84.95.1 1.2×(9.6÷2.4)÷4.86.750.93.758.9×1.1×4.7 1.341.83.660.22.7×5.4×3.9 0.960.280.040.72 3.6×9.85-5.46 12.78-(4.97+2.78)8.05×3.4+7.6 31.70.5×0.71.65 6.58×4.5×0.9 35.72- 4.9-5.72+5.12.8×0.5+1.581113.67×2.83.67×7.2 324.90.9 12.5×6.3+27×1.25+0.125÷0.014.84.8×0.5 3.1+25.78+6.9 (1.250.125)×815.25+4.72+4.75+5.28 4.8×100.1 34.82(4.82+15.2)56.5×9956.5 7.28+0.94+2.72+0.06 7.09×10.80.8×7.097.84+0.730.84 4.85 + 0.35 ÷1.4 6.3×99+6.3 8.7 ×17.4 - 8.7 ×7.4 15.74.35.7 12.5×0.4×2.5×8 1.6+0.41.6+0.4 0.87×3.16+4.64 62.8÷2.5÷0.49.5×101 7.3×99 0.68 ÷5.2 -3.5×1.25 (1.25+2.5) ×8 40.5 ÷0.81 ×0.18 9.42×1094.2×0.94.8 ×15 ÷2.41.8×2.48+1.52×1.8-0.5 213.×0.×82578.76+0.4×3.6×2.5+1.246.81+6.81×99 6.5×(10-3.7)+2.980.25×185×40 4.75+8.4÷(9.2-6.8)×404.4×0.83.4×0.8×(9.37+937+937+937)×25 0.125×7.9×1642.×1.1.×1.752.48×(7.3-5.8)+1.5×7.522.37×6.3+2.37×3.7 12.773-4.5×(0.75-0.356)+9.232.5×1.25×0.32 (6.4+0.88)÷0.8+3.2×1.253.8×10.124-5.4+(0.63+1.29÷0.23)2.5×(3.8×0.04) 2.18+4.65+7.82+5.35+12.5 7.69×101 3.8×10.1(25+2.5+0.25)×4 0.25×39+0.25 (35.2×45.6+45.6×63.8+45.60.125×72 12.253.10.856.1746×0.33+54×0.331.91.9×0.9÷3.82.8二、用竖式计算1.8+0.02= 5.76×32.08×7.5=0.43×0.28= 0.72÷0.9= 90.75÷3.3 1.05×2.4= 4.6×0.6=0.2÷0.01=16.9÷0.13 1.89÷0.54= 3.08×0.43= 0.25×40= 3.7×0.0165.61÷6.1=5.22÷29= 1.25×0.8=5.2×0.6 6.21÷0.3= 13.95÷3.1=5.5×66=6.4×0.5 1.3÷0.9 5.93×0.767.8×0.35=5.25×5 21.84÷0.7 32.08 8.4×0.25=0.042×0.54 28.14÷6.7 3.54×13 0.25×0.046 0.396÷1.2= 205.674 6.84×7.45 1.08×2515.6×13=5.4÷0.036 36.72÷2.40.125×1.40.025×14= 5.778÷5.4= 110.7÷0.5410.1÷3.3= 0.04×0.121.5×0.25= 1.204÷0.43= 3.25×9.04= 6÷1.2=9.2÷2.3=3.5×0.2= 7.15×22 18.9÷0.54= 6.45×0.73= 4.8 + 2 = 1.55÷3.9 0.35×8.6= 1.5×26.7=3.5×24=8.4×1.3 54÷0.36=7.218÷36 4.25×24=35.4×4.2 0.462÷1.45.24÷7.2 5.24÷7.2 2.52×3.4 0.756÷0.36= 5.84÷0.16 87.11÷3.12.5÷0.7= 3.06×36=8.02×3.5= 1-0.01= 3.68×0.251.44÷1.8=8.9×0.05= 7.6×1.05=4.48×0.4 5.86÷0.2416.32÷515.56÷0.834.8×0.250.18×15= 8÷116.5-5.6= 13.76×0.8= 9.58÷0.23= 18.72÷3.6= 2.84×0.05 = 10.75÷12.5= 3.84×2.628.56÷5.1= 0.42×0.308 0.76×0.32 4.32÷3.62.7+3.13 三、速算与巧算(1)5.8+2.32+0.68+4.2 (2)1999+199.9+19.99+1.999(3)12.59-3.24-5.76 (4)8.1+7.8+8.2+8.4+7.9+7.7(5)18×5.5 (6)8.88×1.25(7)34.7×0.25 (8)238÷1.25(9)0.25×12.5×3.2 (10)124.68+324.68+524.68+724.68+924.68(11)5795.5795÷5.7957×579.5 (12)1990×198.9-1989×198.8(13)2.25×0.16+264×0.0225+5.2×2.25+0.225×20(14)(1+0.28+0.84) ×(0.28+0.84+0.66)-(1+0.28+0.84+0.66) ×(0.28+0.84)(15)4.82×0.59+0.41××5.9 (16)0.125×0.25×32(17)16×4.5 (18)0.25×1.25×22.4(19)0.9+0.99+0.999+0.9999+0.99999 (20)(72×357+357×28)÷(51×7×4)(21)98989898×99999999÷1010101÷11111111 (22)4.8×÷7.5)(23)(67.8+9.48) ÷×30.05 (24)1.7+1.7×(5.8-2.8)+(1.75÷1.4)(25)3.04××2.9+5.8×6.96 (26)(0.1+0.2+0.3+0.4+1)÷5.5(27)3.14×6.5+4.5×3.14-3.14 (30)1-2+3-4+5-6+-98+99-100+100(28)1240×3.8+124×51+1.24×1400+760×9.6+0.76×700(29)1÷(2÷3) ÷(3÷4) ÷(4÷5) ÷÷(1999÷2000). z.