小学五年级数学上册简便计算专项练习 一、简便计算。2.53.60.9 12.50.38.8 1.25(100-8) 2.06+2.06999.5101 42(5.250.25) 1.298 2.41.250.350(6.70.02) 0.2799+0.27 2.53.20.125 3.41.016.51.98 6.80.750.5 1.53+23.47.2 4.711-4.74.8+5.24 2.851.250.8 10.50.2512 4.050.5-1.141.5899+1.58 12.50.42.58 0.873.16+4.64 12.54.812.53.20.25 3.45102 12.5 88 13.650.25628.986.3 -3.15二、运算定律。6.8(1.2+0.5)0.04 7.26-5.4+1.74-1.6 100-2.70.36-2.550.461.9+0.541.9 20.64-9.83-0.17 7.7520(3.24-3.04)
