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时间:2018-08-08
《六年级数学计算能手比赛试题.doc》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、六年级数学计算能力比赛试题(时间:20分钟)(做对一题得1分)姓名分数一、口算部分:0.1-0.01=-=0.24×5=÷=5.8×9+5.8=÷10=×=7.2÷0.08=÷=×=15=24×(+)=3.14×25=3.14×36=3.14×9=3.14×12=3.14×5=28.26÷3.14=8л=+-+=6л=0.1+0.41=162=+= 0.82=120÷3÷20=1--=3.5÷0.07= ++=11²= -(-)= ×0×= 2.5×7×4= 6×+×2=1+45%=1-30%=÷100%=
2、(+)×24=72×0.4=72÷0.4=24×=0.2-=1+×=25×24= 4.2÷0.2=12-0.2=1.25×8= 27+68= 910-540= 18×40= 910÷70=78-0.98= 3÷8= 10÷0.1= 0.8×12.5=8.1÷0.03= 1.5×0.5= 二、估算81÷20≈32×19≈1500÷31≈99×20≈999÷500≈631÷30≈59×80≈881÷10≈71÷9≈423÷7≈59×40≈82×27≈992.1229831.257.9
3、84943005600.4972.0033982.0910122.0850710.142.5139.87102351.020.098100.0948.970.21398.70.39651.0319.35124.98.120.13649.88810.0390.021.25379.4614.892.1659829.733.3332.9852.118.751.0330.2160.23.0149.8350.041042.1818.9150.31.989.872.1310.045.0298.87225.18.039.9513
4、82.134882.3522.140.012991.875.061.267.881.020.5110250.6498.6921.30.20.512.48211001.981.90.525.230.5223613.598.66985972.149.752.161012.031.52.0044821三、能简便的要简便计算:×+×(+)×483--×+×0.6×+÷×101-28×(+-)×5190×25×4(39×+×4)÷-(-)÷2+×0.125×0.25×32(++)×724.25-3-(2-1)187.7×11
5、-187.798×0.25×5+×5.25-25%2.42÷+4.58×-4÷312-(1+2)400÷125÷825×(37×8)(-)×121×2×27÷28
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