页眉内容五年级小数乘除法简便运算50题竞赛；姓名分数2.5×7.1×416.12×99＋16.125.2×0.9＋0.97.28×99+7.284.3×50×0.226×15.7＋15.7×24(1.25－0.125)×856.5×99＋56.57.09×10.8－0.8×7.094.8×100.18.7×17.4-8.7×7.412.5×0.4×2.5×89.5×1016.81+6.81×990.25×1.87×404.4×0.8－3.4×0.82.37×6.3+2.37×3.72.5×1.25×0.323.8×10.12.5×(3.8×0.04)7.6×1053.8×10.10.25×39+0.250.125×7246×0.33+54×0.33(8×5.27)×1.256.85+6.85×990.25×185×409.5×9913.5×0.9812.5×8.87.05×23.7+7.05×76.30.125×3.2×2.5[12.81－(1.5+7.81)]×1.88.7×2.6+6.4×8.7+8.7（12.25＋0.85－6.7）÷82.65×1.7＋1.35×1.78×25×1．25×164.04×2545.55-（6．82＋15.55）3.2×99＋3.24.8×39＋61×4.834.52－17.87－12.232.5×65+45×2.59.45×101－9.450.125×324.6×56＋48×4.6－4.6×43.6×2.5+7.5×3.64.3×0.96.5×1024.57+3.17+3.43+5.83页脚内容1页眉内容3.25×99+3.251.8÷252.5×1.38×1.450×3.27×0.219.2×0.54+19.2×0.46页脚内容2
