【人教出版】五年级数学上册小数乘法练习进步题和小数乘法简便运算.doc

_* 【人教版】五年级数学上册小数乘法练习题和小数乘法简便运算 0.2516.24 ( 1.25－0.125)8 3.6102 3.723.5＋6.283.5 15.613.1－15.6－15.62.1 4.87.8＋780.52 4.8100.1 56.59.9＋56.5 7.0910.8－0.87.09 16.82.1-16.8 0.255.780.4 64.90.12580 1.29.1+1.20.9 3.5103 0.8（0.125+125+1.25） 2.50.1254080 3.699.9 8.69+8.6 2.40.19+0.248.1 4.8+8.63+5.2+0.375.93+0.19+2.811.76+0.195+3.24 2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.98 0.134+2.66+0.866 1.27+3.9+0.73+16.1 3.07－0.38－1.628－2.45－1.55 0.32403 23.4－0.8－13.4－7.20.2536 12.7－（3.7＋0.84） 36.54－1.76－4.54 7.60.8＋0.27.6 0.258.54 0.85199 1.288.6＋0.728.6 12.50.960.8 0.8（4.31.25） 3.12＋3.1299 28.6101－28.6 （4.23＋6.17）0.8 0.8615.7－0.8614.7 2.4102 14－7.32－2.68 2.64＋8.67＋7.36＋11.33 （2.5－0.25）0.4 9.161.5－0.59.16 3.6－3.60.5 4.51.8 4.23.5 9300.65 63.42.50.4 4.91.4 3.9（1.35） （7.7＋1.54）0.7 2.52.4 2.745 0.351.2520.8 32.40.9＋0.132.4 150.25 7028 15（0.150.4） 4.252.59.9＋0.17 10.4－9.60.35 2.311.20.5 14.9－（5.2＋4.9） 18.32－5.47－4.32 7.85＋2.34－0.85＋4.66 13.4－（3.4＋5.2） 17.29－5.28－6.29 3.68＋7.56－2.68 25 6.8 0.04 0.25 32 0.125 6.4 1.25 12.5 23 0.1 ＋ 2.3 9.9 0.45 201 0.58 10.1 50.2 99 4.7 9.9 3.6102 0.2516.24 3.28 5.7＋6.72 5.7 2.199＋2.1 1.79.9＋0.17 3.723.5 + 6.283.5 6.4 0.25 + 3.6 4 3.75 0.5－2.75 2 7.3 4 ＋ 2.7 0.25 5.26 0.125 ＋ 2.74 8 6.783.6+3.223.6 12.50.570.8 500.130.2 2.330.50.45 9.7899+9.78 1.67.51.25 0.4572+450.18+4.5 37.5897 87.21.25 50.8101-50.8 8.429.6+0.4842 480.250.2 3.61.9+360.81 0.18＋4.26－0.18＋4.26 0.258.54 12.50.960.8 0.250.734 4.3612.58 0.2516.24 1.252.532 3.20.2512.5 0.2536 (1.25－0.125)8 4.810.1 3.6102 0.39199 0.32403 3.6510.1 0.859.9 3.723.5＋6.283.5 15.62.1－15.61.1 3.834.56＋3.835.44 56.599＋56.5 7.0910.8－0.87.09 9.799＋9.7 4.299＋4.2 27.53.7－7.53.7 3.92.7＋3.97.3 5.411-5.4 2.316+2.323+2.3 10.716.1-15.110.7 7.74（2.8－1.3）＋1.52.26 10.60.35－9.60.35 7.60.8＋0.27.6 1.288.6＋0.728.6 0.65101 8.91.01 4.87.8＋780.52 1.879.9＋0.187 3.140.68＋31.40.032 12.79.9＋1.27 3.654.7 －36.50.37 1010.87-0.9187 6.663.3+6.666.7 7.20.2＋2.41.4 4657＋2386 4.87.8＋780.52 3.140.68＋31.40.032 1010.87-0.9187 3.654.7 －36.50.37 2.316+2.323+2.3 3140.043＋3.147.2－31.40.15 51.030.2 321.25 0.4599 5310.1 0.12596 12.510.8 257.30.4 4521－502.1 451.58＋5.515.8 4.26.51＋3.494.2 9.992.22＋3.333.34 12.588 0.2548 12.588 0.2548 480.56＋440.48 0.279343＋0.657279 9.161.53－0.05391.6 3140.043＋3.147.2－31.40.15 5310.1 4.26.51＋3.494.2 257.30.4 0.12596 12.510.8 （20－4）0.25 4521－502.1 451.58＋5.515.8 9.992.22＋3.333.34 3.71.40.05 720.81+10.4 1.425+3.45 1.5102 1.250.70.8 2.73.7+0.3773 8.799 0.8（12.5 – 1.25） 1.250.4802.5 500.130.2 1.250.70.8 0.32.50.4 1.252130.8 0.12564 0.2536 0.250.28 0.1253.22.5 （7.04+2.76）1.2 （2.5－0.25）0.4 32.40.9＋0.132.4 0.8615.7－0.8614.7 3.52.7-3.50.7 3.599+3.5 3.599 12532 87147+87153 6.41.2512.5 15.12－6.82－8.18 0.760.43＋0.240.43 5.860.40.50.5 2.90.45＋0.294.2＋0.02913 (2)1.9999＋19.999＋199.99＋1999.9＋19999 87147+87153 0.78100.5 1.5102 1.22.5+0.82.5 0.125 2.53.2 0.93201 （7.04+2.76）1.2 4.250.99+0.01 3.45x29 + 30x3.45 +3.45x31