奕龙小学第一届“计算能手”六年级上计算比赛试卷班级姓名得分一、口算。（35分）9.1－7.3=1.2×6=7.2＋2.8=31×3=24×5=1000÷8=0.8×0.6=1.25×4=300÷50=480÷0.6=0.15×9=3.4×0.7=2.2×3=0.2×1.1=2.1÷0.3=1.4×0.5=6.3÷7=7.2×0.1=10÷0.5=3÷0.3=5.6÷100=4.8÷0.6=0.75×100=0.125×8=0.96÷2=0.56÷28=1.6÷0.8=3.6÷12=0.8×1.1=7.2+12.8=46.7－3.8=二、下面各题,各样简便就怎样算。（48分）2.15+8.73+1.27+7.8511.87-(8.2+1.87)5.42-3.87-1.134.38－1.56+0.62－0.440.4×270×2.5（40+1.25）×8（12.5－0.05）×82.6×8.5+8.5×7.49.9×6.9－6.9×3.95.6×99+5.62.5×(1.9＋1.9＋1.9＋1.9)7.2÷1.25÷8三：笔算(共27分，每题3分)1.06×2.511.124÷5.434.2×0.64＝（得数保留一位小数）0.63×0.106＝1.06×20.5＝6.8×0.195＝750.4÷0.56＝1.512÷0.36＝57.76÷15.2＝（验算）（验算）1
