小数加减乘除计算题(共17页).doc

精选优质文档-倾情为你奉上1、口算8.60-6.39=3.31+5.21=6.78-1.84=2.44+4.86=8.49+6.71=1.31+5.61=6.35-2.83=7.40-4.04=2、简便计算0.258.5412.50.960.80.250.7344.3612.585.58.21.85.50.250.8944.80.982.354.645.362.353、竖式计算6.14+3.83=7.93-1.64=5.23-2.36=3.44+3.36=61.9+6.2=38.9-5.55=44.4+1.4=55.5-1.9=专心-专注-专业1、口算2.30.4=5.6+5.4=2.50.4=1250.8=2.50.4=0.1258=1.258=3.610=2、简便计算0.2516.241.252.5323.20.2512.50.2536