部编人教版小学小学五年级数学计算题专项训练人教版第二学期五年级数学计算能力竞赛(答 卷 时 间:10 分 钟 完 成,总分:100分)姓名: 成绩:一、口算。(40分)0.246.9 = 9.17.3 = 1.26 =7.22.8=313 = 245 = 10008 =0.80.6 =1.254 = 30050 =4800.6 =0.159= 3.40.7= 2.23 =0.21.1 = 2.10.3=二、下面各题,各样简便就怎样算。(60分)2.15+8.73+1.27+7.85 11.87-(8.2+1.87) 5.42-3.87-1.13 4.381.56+0.620.44 0.42702.5(40+1.25)8 (12.50.05)8 2.68.5+8.57.4 9.96.96.93.95.699+5.6 2.5(1.91.91.91.9) 7.21.2581 / 1