五年级上册小数乘除法计算题.doc

5.62.9 3.771.8 1.6666.1 5.614.37.65885 4.882.9 5.555 4.2681.7 8.7883 9.462.85 5.25.555 2.223.33 （商是循环小数的横式答案用简写方法记录，除不尽保留2位小数）85.4416 1.3845.1 42.847 101.79 21.2436 0.73623 43.512 2101.439.624 51.30.27 91.23.8 0.7560.18 11.971.5 69.62.9 7.1522 76.45.4 14.362.7 8.336.2 3.0636 0.3961.2 90.753.3 3.680.25 16.90.13 1.553.9 3.842.6 5.255 35.44.2 0.7560.360.0420.54 0.760.32 0.250.046 2.523.4 1.0825 0.120.50.16 4.80.25 0.1251.42.50.7 10.13.3 10.7512.5 3.259.04 脱式计算（能简算的要简算）2.57.14 4.3500.2 642.640.5 2615.715.724 3.69.85-5.46 8.053.4+7.6 6.584.50.9 2.80.5+1.582.75.43.9 (2.275 0.625)0.28 4.8100.1 4.84.80.5 3.94+34.30.2 1.2(9.62.4)4.8 8.91.14.7 324.90.9 (1.250.125)8 56.59956.5 7.0910.80.87.09 4.85 + 0.35 1.4 8.7 17.4 - 8.7 7.4 9.5101 12.50.42.58 0.873.16+4.64 0.68 （5.2 -3.5） 1.25 4.40.83.40.8 (9.37+937+937+937) 25 3.810.1 2.376.3+2.373.7 2.51.250.32 2.5(3.80.04) 7.69101 3.810.1 0.2539+0.25 0.12572 460.33+540.3385.27) 1.25 6.81+6.8199 0.2518540 6.80.750.5 3.750.1252.75 1.53+23.47.2 4.8 （15 2.4） 3.50.98 40.5 0.81 0.18 6.81+6.8199 9.599 0.2518540 用短除当分解质因数36 48 56 57 65 76 87 93 94 105 129 132 135 11102、口算下面各题。3.4aa= a0.3a= 3.1x1.7x= 0.3x3.5xx=15b4.7b= 6.7tt= 32x4x6x= x0.5x0.04x=2x0.4x=48(并检验) 8xx=14.7 35x13x=9.6 5(x3)=35 x3.7x2=16.1 4x3x1.2x=158 0.5254x=0.6 0.7(x0.9)=421.3x2.43=12.4 x(30.5)=12 7.4(x2.1)=6 10x458=8105x34=3x54 7x27=133x 5x2x=1.40.07 6x3x=65x13.45.2=1.57 3（x0.2）=9.6 x0.35x=0.91 0.30.1525x=120.4253.5x=6.5 7x31.4x=0.256 5(32x)=2.456(32x)=1.25 1.12x(x3)x=153 (x9)(98x9)=4 7.5xx=10.2 (1.5x)2=9 15x5x16=80 (0.5+x)+x=9.82 54-X=24 7X=49 126X=42 13+x=28.5 2.4X=26.4 7.5x3x=18 51.3-2x=5.5 24x+6x=63.6 X+8.3=10.7 5x 30 x-5.6=9.4 x0.8=90 3x816 3x+9=27 5.3+7x=7.4 3x5=4.8 X-0.8X=6 12x+8x=4.8 7(x-2)=49 48+2x=36 (x-2)3=7 x5+9=21 (200-x)5=30 48-27+5x=31