人教版数学五年级上册第三单元检测卷（含答案）

是,保留两位小数是．7．120.25÷=25÷1.90.519÷=÷1.80.63.6÷=÷5.441.654.4÷=÷2.240.4÷=2244÷=22.40.04÷=5.64?=．2.41.2÷2.40.350.99÷0.3509.9÷9.97.253.2÷7.251.5÷．（1）82.82.4÷=（2）4.02613.2÷=xxA．0.92÷D．12.528÷÷C．1.266÷B．0.163A．12.80.99÷C．12.81÷÷=?=?=?、b、c、d均不等于0),则a、b、d中最大abcdaA．aB．bC．cD．dA．10B．0.1C．0.01D．0.0001=÷=3.62÷=0.651.3÷=0.360.4+=0.321.6÷=÷=7.51.5（1）9.365.2÷=（4）41.632÷=（2）32.819+÷÷-4.632.559.3÷÷1.920.122.7+÷÷?1.7750.50.2÷÷(3.21.2)0.08（1）1.5,0.75,0.375,,,0.046875（2）199÷==（3）1370.027÷=4÷==（）437=（）537=（）637=（）737=（）837=（）937A．0.9B．1.0C．0.98．3．2.1850.23【解答】解：2.1850.23218.5239.5÷=÷=．（2）100812.5÷=+=÷=?÷÷=120025÷=÷÷=÷÷=÷÷=÷÷=÷÷=÷÷=÷故答案为：1200,5,1.2,16．÷=5.6÷=÷=÷=÷=÷=故答案为：5.6,56,560,22.4．÷<2.4÷0.35÷9.9÷7.251.5÷的商大于0.35；（3）0除以任何不是0的数得0．÷<÷．÷<（2）0.350.990.35÷>（3）09.99.9÷<（4）7.253.27.251.5÷<÷（1）82.82.4÷=÷=34.5（2）4.02613.2÷=；（2）4.02613.20.305÷=11．811÷=??故答案为：0.72,72,0.727．÷÷=（2）5.60.78÷=÷=（4）1.890.2÷=14．2.50.461÷=,÷=,22.4÷=,32.418．0.3(0)xxxx÷=A．0.92÷÷D．12.528÷C．1.266÷B．0.163B、0.1630.05333D、12.5281.565A．12.80.99÷÷C．12.81B÷中0.991C÷=22．0.50.80.91(÷=?=?=?、b、c、d均不等于0),则a、b、d中最大的是()abcdaA．aB．bC．cD．d÷=?=?=÷=?=?===a÷=,所以0.5b?=,所以1.25c?=,所以1.11dx=,所以1>>>即bcda>>>23．0.10261.25A．10B．0.1C．0.01D．0.0001=8.10.9÷=0.651.3÷=0.360.4÷=3.62?=4.50.2?=8.651.5+=0.321.6÷=7.51.5÷=8.10.99÷=0.651.30.5÷=0.360.40.9÷=3.627.2?=4.50.20.9?=8.651.510.15+=0.321.60.2÷=7.51.59÷=（1）9.365.2÷=（3）72.90.09÷=（1）9.365.21.8÷=（2）32.8191.73÷（3）72.90.09810÷=（4）41.6321.3÷=+÷÷-4.632.559.3÷÷1.920.122.7+÷÷÷(3.21.2)0.08÷?1.7750.50.2÷÷=÷（2）1.920.122.7÷-（3）4.632.559.3+÷=+（4）2.160.270.12÷?（5）1.7750.50.2÷÷=÷?=÷（6）(3.21.2)0.08+÷=÷（1）1.5,0.75,0.375,0.1875,,0.046875（2）199=========（3）1370.027÷=÷=4÷=÷=÷=÷=÷=÷=÷=．÷=,0.750.3752-=,1088127-=,815427÷=,÷=；=====1.2345678911.1111102=1.23456789911.11111101（3）10827135÷=5,÷=2,÷=9,÷=6,÷=3．