四年级下学期小数计算比赛姓名: 班级: 一、竖式计算8.73.4= 245.2= 31.64.5= 307.63=5.0320.4= 0.125.6= 20.61.7= 1300.45=2.4752.9= 6.253.04= 5.68400= 38.59.6=7.98.6= 3.46.82= 4.0881.5= 6.12580=807.4= 1026.5= 6.067.05= 7.90.63=二、简便计算13.8-4.23-5.77 4.89.9 0.251.2532 6.91.1 3.432.8+2.86.57 0.251.2540.8 6.84+3.49+6.51 8.812.5 16.8-15.47+13.2-4.53 1281.258 2.53.21.25352.54 1023.5 9.72.43+9.77.57 7.4996.22.43+6.24.15+6.23.42 2.512.5640.5 48.52-7.35-12.65-18.5212.56.37+1.2516.3 1-0.99+0.98-0.97+0.96-0.95+0.04-0.03+0.02-0.01