四年级数学计算竞赛题（2014、4）姓名班级评分1、直接写得数（19分）22×3＝130×0.3＝25×4＝500×2=53×2＝90×0×8×7＝40÷5＝200÷4＝1.4×0.5=0.8×1.1=7.2×0.1=0.125×8=7.2+12.8=4.7－3.8=0.22×100=1－0.8=0.96－0.9=0.015×4=1-0.356+0.356+2.2=2、竖式计算。（每题2分，共30分）305×42＝7600÷40＝632×27＝155÷31=272÷48=208÷26=343÷43=17.04×0.26＝4.58×0.37=0.43×0.29=52.6×0.23=4.3×8.142.76×0.4511.69+9.56519—0.0253．计算，能简便计算的用简便方法算。（每题3分，共51分）0.25×19×4（25×125）×（8×40）56×99+5612×10235×3.9+65×3.945×（200+2）62×1292.8×1.43＋0.5710－6.06＋8.5360÷【72÷（20+16）】2.8×7.6＋1.4×2.8＋2.86.3×10.13.65×4.7－36.5×0.372.22×9.9＋6.66×6.70.25×3.3×0.4(1.25－0.125)×87.6×5.3+0.76×47
