2019-2020年五年级数学口算竞赛题.doc

2019-2020年五年级数学口算竞赛题姓名：得分：43.2 10.99 4.14.14 0.60.80.810.9= 10.01= 0.90.45= 0.480.24=1.80.9 0.280.2 6.55.6 9.6551.60.04= 0.240.5= 1.850.1= 1.20.7=14.73.894.7 4.569.10.441.762.830.24 6.263.651.350.093= 4.97= 4.22= 1.13=0.320.21 7.22.8 0.860.6 0.580.41100.35= 1000.36= 10007.8= 0.00610000=0.570.27 0.860.4 0.740.54 0.32+0.21=12.310= 6.53100= 121000= 0.16100=10.42 5.23.5 0.610.3 0.80.083.66= 8.44= 0.648= 0.68=2.48= 0.063= 200.5= 10000.09=6.61.4 3.92 0.8370.837 7.31.70.357= 2.84= 0.50.5= 2.510=0.060.9= 0.051.6= 0.50.05= 0.30.03=3.60.3= 0.540.6= 0.120.4= 0.450.5=0.254= 2.50.4= 1.250.8= 12.50.8=8.52.9 4.84 3.84.02 3.420.483.70.01= 20.25= 1.20.03= 01.8=1.080.8 20.01 7.511.49 4.630.80.25= 1100.1= 130.5= 0.320.004=8.10.3= 0.920= 0.10.001= 0.80.02=991.241.24= 60.254=0.251.584= 3.51013.5=附送：2019-2020年五年级数学口算能力检测试卷18060= 1225= 090= 4545= 0.2544= 131+218+269+182= 2564 42035= 3654=12053= 1987525 120-205 59亿58亿 (1.33.5)0.6= 752.5= 0.451.258= 2.57.64=97.60.02= 8.8(0.250.4)= 0.25870.75= 0.80.352=0.10.010.1= 9.99.999= 2.73.66.42.7= 72089=2.95.72.1= 20.160.64= 16.784.516.7= 6.8(3.82.9)=91.396.7= 5.55.255.2= 0.82510= 42.8254=7.22.8 0.90.01 3.57.630.20.5 0.960.31.50.4 70.252.50.70.8= 82.5161.6 5.61.01=8（2.50.25） 0.360.6464.3216 72.80.8 8.40.21.60.2 8.44.2 0.050.8 2.560.37 1.233250.80.5 122.5 3.21.63.53.53 19.628.82.2= 3.92.037.20.32.80.3 13.89.92.42.5 0.754（1.50.25）4 4.20.14.23.5 2.140.9 2745673= 120.3= 2.870.7 134 244564=2.10.32.1 2.308.1= 1.371.371.37= 4.4(50.2)=71.3= 0.960.06= 0.360.3= 0.350.7= 13.6513=40.80.251.25= 130.70.7= 7.0523.7+7.0576.3 = 0.1253.22.5= (12+23.10.75)0.45.12= 728199=637201= 1625= 1.6(127.2)(0.842.1)=在下面的括号里填上适当的数( )( )=( )( )=( )( ) ( )10=1( )=( )( )2.5的1.2倍是( )； ( )扩大6倍是0.24; 4.522=( )2.2； 3.270.08=327( ); 5.90.8的积用四舍五入法保留一位小数约是( )。4.8100.1=4.8()4.8(); 5平方米8平方分米（ ）平方米（ ）平方分米;875平方厘米（ ）平方分米（ ）平方厘米; 4.3公顷（）平方米;2.7平方米（ ）平方米（）平方分米;2500平方厘米（ ）平方分米（ ）平方厘米填上适当的运算符号，使等式成立（1）6.2（）16（）0.2 （2）1.7（ ）0.20.05（）30在里填“”“”或“”6.741.0016.74 4.5680.044.567 9.680.999.68 989克 1千克4.820.08 4.82 5.71.115.7 67厘米 7分米 230 230 322 76 当X=4时,17X 68 当X=0.1时X5 0.2