五年级上数学小数乘除法口算天天练.doc

_* 口算专项训练（1） 0.4 4 = 2 4.4 = 3.9 2 = 2 2.8 = 1.6 3= 7.4 3= 2.4 3= 3.7 3= 7.1 3 = 2.2 4 = 8 4.1 = 6.3 4= 1.9 4= 2.3 4= 7 2.6 = 6.7 4 = 1.9 8 = 7.4 0 = 4.3 1 = 2.2 2 = 2.5 9 = 6.7 8 = 2.3 8 = 4.4 2 = 5.4 6 = 8.2 9 = 4.5 6 = 3.4 8 = 1.9 3 = 2 4.3 = 3 5.4 = 3 6.6 = 3 6.7 = 0.3 8 = 0.4 7 = 3.4 4 = 5 0.8 = 1.5 6 = 6 8.1 = 0.6 9= 6.3 4= 1.9 4 = 2.3 3 = 6 4.3 = 8 4.3= 3.9 2 = 2 2.8 = 1.6 3= 7.4 3= 2.4 3= 3.7 3= 7.1 3 = 2.2 4 = 8 4.1 = 3 5.4 = 3 6.6 = 3 6.7 = 0.3 8 = 0.4 7 = 口算专项训练（2） 0.3 100 = 0.46 10 = 6.6 10= 5.2 10 = 2.4 10 = 7.9 10= 10 9.72 = 2.3 1 10= 10 3.3 1= 10 0 6.8 = 10 8.37 = 1 0 4.6 = 10 5.66 = 0.1 10 = 10 8.5 = 68.2 10 = 51.2 100 = 4.2 100 = 10.3 10= 1.3 10 = 1000 5.4 = 5.3 100 = 1000 6.73= 10 8.1 = 100 7.4 = 8.87 100= 8.98 100= 8.8 10 = 1000 5.2 = 100 2.05 = 4.9 1000= 10 0.22 = 1000 2.2 = 10 2.3 = 100 2.6 = 100 2.8 = 1.67 1000 = 7.4 10 = 2.4 1 00= 100 3.19 = 100 3.2 = 2.2 100 = 100 3.8 = 9.9 1000 = 100 4.1 = 6.3 7 10 = 100 4.1 = 0.3 10= 1000 0.3 5= 10 4.38 = 6.4 100 = 2.5 6 100= 13.4 10= 0.5 100 = 0.5 10 = 20.6 1 00= 0.9 100 = 100 10.8 = 10 4.52 = 1000 5.41 = 小数乘整数(3) 口算专项训练（3） 2.4 1 00= 100 3.19 = 0.3 10= 1000 0.3 5= 10 4.38 = 6.4 100 = 2.5 6 100= 13.4 10= 100 3.2 = 2.2 100 = 100 3.8 = 9.9 1000 = 9.5 100 = 100 6.76 = 5.5 10 = 100 6.93 = 9.2 100 = 10.3 10= 1.3 10 = 1000 5.4 = 5.3 100 = 1000 6.73= 1.46 100 = 27.4 100 = 2.54 1000 = 3.76 100 = 7.17 1000 = 2.25 1000 = 100 4.15 = 8.3 5 = 100 8.35 = 10 8.38 = 7.8 10 0= 10 8.64 = 10 8.9 = 7.4 100 = 4.36 100 = 1.25 8= 0.25 4= 3.2 5= 7.2 6= 4 6.1 = 8.4 2 = 10 6.48 = 5.1 3 100= 100 8.2 7= 4.31 8= 8.22 3 = 1000 5.4 = 5.3 100 = 1000 6.73= 10 8.1 = 100 7.4 = 8.87 100= 2.8 30= 8.3 2 = 7.5 2 0= 7.9 2 = 6.6 4 = 4 5.5 = 口算专项训练（4） 3.76 100 = 7.17 1000 = 2.25 1000 = 1.25 8= 0.25 4= 3.2 5= 7.2 6= 1000 6.82 = 100 8.3 = 100 4.6 = 0 5.6 = 58.1 100 = 14.1 4= 7 2.1 = 100 5.3 = 44.2 100= 100 8.05 = 100 8.2 = 4.3 6 10 = 100 8.35 = 4.9 1000= 10 0.22 = 1000 2.2 = 10 2.3 = 100 2.6 = 100 2.8 = 1.67 1000 = 7.4 10 = 2.4 1 00= 3.9 2 = 2 2.8 = 1.6 810= 7.45 100= 2.4 3= 0.7 10= 7.1 100 = 2.2 4 = 8 4.1 = 3 5.4 = 100 6.6 = 3 6.7 = 0.3 8 = 0.4 7 = 8.4 2 = 9.5 100 = 100 6.76 = 5.5 10 = 100 6.93 = 9.2 100 = 5.2 6 10 = 2.5 100 = 0 5.6 = 58.1 100 = 14.1 4= 7 2.1 = 100 5.3 = 44.2 100= 口算专项训练（5） 7.2 4 100 = 7.4 100 = 8.4 2 = 9.5 100 = 100 6.76 = 5.5 10 = 100 6.93 = 9.2 100 = 5.2 10 = 2.5 100 = 8.8 7= 7.5 3 = 7.4 4 = 1.3 4 8 = 100 8.05 = 100 8.2 = 100 9.2 = 6.6 10= 5.2 100 = 0.4 6 = 0.92 3 = 0.17 2 = 2.3 100 = 10 3.3 = 3.2 5= 5.1 5= 4.1 5= 4.3 4 2 = 8.2 100 = 10 8.38 = 4.31 8= 8.22 3 = 10 8.38 = 7.81 100 = 2.33 4= 6 4.2 2= 8 4.3= 4 4.4 1= 2.5 100 = 3.2 4= 8 4.2= 8.9 2 = 3.2 10= 8.8 3 100= 10 4.72 = 8.8 10 = 8.3 10= 7.5 2 = 9.22 100 = 5.2 10 = 2.5 100= 100 7.2 = 7.5 10 = 7.4 100 = 口算专项训练（6） 40.25= 0.51.1= 0.80.5= 0.5100= 0.20.5= 600.5= 8.5100= 300.5= 0.780.2= 3.920= 0.50.28= 0.80.9= 1.58= 1.55= 3.60.2= 2.58= 40.25= 7.254= 1.940= 3.40.7= 3.65= 2.52= 0.510= 0.68= 2.12= 5.6100= 4.52= 3.080.01= 4.951000= 6.90.1= 0.40.5= 2.810= 0.70.8= 0.420= 0.87＝ 0.78＝ 1.328＝ 10.32＝ 3.50.2＝ 0.90.3＝ 50.6＝ 100.05＝ 0.137＝ 0.74＝ 0.054＝ 12.58＝ 0.450＝ 3.250＝ 2.34＝ 2.63＝ 7.50.1＝ 0.450.2＝ 4.12＝ 3.50.01＝ 90.5＝ 09.8＝ 3.90.3＝ 4.12＝ 2.63＝ 1.258＝ 7.50.1＝ 10.06＝ 0.90.3＝ 口算专项训练（7） 90.5= 2.50.4= 0.425＝ 8.20.8= 0.20.4= 0.224= 0.90.2= 3.991= 40.3= 300.1= 0.50.2= 10.08= 4.80.5= 2.010= 2.45= 1.258= 0.21100= 3.40.4= 7.80.5= 2.99= 1000.8= 6.80.4= 0.80.1= 0.740= 8.15= 0.80.25= 10.98= 0.80.5= 0.540= 0.1258= 00.54= 40.25= 1.258 = 0.1258＝ 0.812.5= 2.50.4＝ 0.1810＝ 0.10.02= 1.80.5= 322.5＝ 00.54= 40.25= 1.258 = 0.1258＝ 0.812.5= 2.50.4＝ 0.1810＝ 0.10.02= 1.40.5= 322.5＝ 2.45= 0.3610= 3.14100= 2.50.04= 1.50.8= 3.6500= 6.520= 7.85= 0.0081000＝ 0.1256= 720.4= 1.50.5= 10.130= 口算专项训练（8） 0.87＝ 0.78＝ 1.328＝ 1.57＝ 10.32＝ 3.50.2＝ 0.90.3＝ 50.6＝ 100.05＝ 0.137＝ 0.74＝ 0.054＝ 12.58＝ 0.450＝ 3.250＝ 2.34＝ 2.63＝ 7.50.1＝ 0.450.2＝ 4.12＝ 3.50.01＝ 90.5＝ 09.8＝ 3.92＝ 4.12＝ 2.63＝ 1.258＝ 7.50.1＝ 10.06＝ 0.90.3＝ 90.5= 2.50.4= 103.52= 8.20.8= 0.20.4= 0.224= 0.90.52= 3.991= 40.3= 300.1= 0.350.2= 10.08= 4.85= 2.010= 2.45= 1.258= 0.21100= 3.40.4= 7.80.2= 2.190.1= 100.89= 6.80.4= 0.80.18= 0.724= 8.15= 0.895= 0.10.98= 80.52= 0.540= 0.1258= 70.08= 1.870= 0.245= 口算专项训练（9） 0.020.5= 3.60.3= 6.30.7= 5.6100= 0.750.6= 0.1258= 4.80.3= 0.862= 0.562= 0.364= 0.648= 0.79= 3.64= 0.81.1= 7.20.8= 4.63= 2.84= 5.23= 12.54= 1.640.1= 102.22= 2.45= 8.6510= 0.350.6= 3.080.01= 4.951000= 6.90.1= 0.40.5= 2.40.8= 1.89= 9.60.8= 0.1082= 4.950.1= 9.50.6= 0.325100= 2.58= 0. 560.7= 0.1254= 3.280.1= 3.93= 7.20.1= 0.010.1= 0.250.4= 1.60.8= 0.82.5= 1.250.8= 3.20.4= 01.7= 0.22100= 5.60.8= 50.24= 4.50.5= 3.90.3 16.55= 50.12= 240.5= 4.80.5= 44.2= 0.842= 50.25= 口算专项训练（10） 4.12＝ 2.63＝ 1.258＝ 7.50.1＝ 10.06＝ 0.90.3＝ 90.5= 2.50.4= 0.425＝ 8.20.8= 0.20.4= 0.224= 0.90.2= 3.991= 40.3= 300.1= 0.50.2= 10.08= 4.80.5= 2.010= 2.45= 1.258= 0.21100= 3.40.4= 7.80.5= 2.99= 1000.8= 6.80.4= 0.80.1= 0.740= 8.15= 0.80.25= 10.98= 0.80.5= 0.540= 0.1258= 0.90.3＝ 50.6＝ 100.05＝ 0.137＝ 0.74＝ 0.054＝ 12.58＝ 0.450＝ 3.250＝ 2.34＝ 2.63＝ 7.50.1＝ 0.450.2＝ 4.12＝ 3.50.01＝ 90.5＝ 09.8＝ 3.92＝ 4.12＝ 2.63＝ 1.258＝ 7.50.1＝ 10.06＝ 0.90.3＝ 90.5= 2.50.4= 103.52= 口算专项训练（11） 3.60.1= 3.210= 9.30.3= 0.450.09= 40.4= 0.450.5= 0.20.01= 270.1= 7.20.9= 2.55= 150.5= 12= 1.80.9= 0.450.15= 00.25= 10.1= 5.410= 28.6100= 844.2= 52.5= 2.40.6= 0.363= 0.120.03= 2.80.4= 8.5 1.7= 5.67= 1.20.3 = 0.490.7= 0.810.9= 546＝ 4.84＝ 0.484＝ 0.480.4＝ 242= 2.42= 0.242= 0.0242= 244= 2.44= 287= 2.87= 0.287= 2.80.7= 280.7= 280.07= 363= 3.63= 0.363= 3.60.3= 360.3= 0.360.03= 4812= 4.812= 0.4812= 4.81.2= 0.480.12= 0.480.2= 4623= 4.623= 0.462.3= 口算专项训练（12） 4.62.3= 0.460.23= 462.3= 306= 36= 0.36= 30.6= 300.6= 0.30.6= 82= 0.82= 80.2= 0.80.2= 800.2= 0.369= 4.55= 1.310= 8.44= 25= 6.622= 300.3= 102.5= 0.910= 73.5= 04.3= 0.251= 1.60.8= 0.480.24= 180.9= 164= 0.250.5= 5.11.7= 02.3= 3.51= 70.1= 1.50.1= 2.90.1= 10.5= 0.21= 10.2= 9.93.3= 124= 7.20.9= 3.62= 5.46= 5.43= 0.361.8= 3.60.18= 6.30.3= 0.255= 4.812= 6.40.8= 5.511= 7.515= 0.250.05= 6.30.9= 720.8= 540.6= 0.490.7= 0.240.6= 口算专项训练（13） 0.30.5= 1.60.8= 5.60.07= 1.83= 0.140.7= 05.32= 1.26= 4.50.5= 3.40.01= 6.37= 9.90.3= 104= 1.50.5= 205= 6.60.1= 1.30.13= 0.020.4= 5.030.01= 2.10.3= 0.120.04= 2.80.7＝ 0.281.4＝ 40.5＝ 7.51.5＝ 1025＝ 3.521＝ 1.50.3﹦ 0.427= 0.420.6= 0.480.8＝ 0.94.5＝ 5.10.17＝ 0.819＝ 4.81.6＝ 8.40.4﹦ 4.50.9﹦ 2.910= 1.50.03= 4.41.1＝ 9.616＝ 30.5＝ 03.89＝ 6.44﹦ 7.20.9﹦ 0.30.1﹦ 1.20.4= 3.60.6＝ 4.80.16＝ 0.50.5＝ 1.250.25＝ 2.61.3＝ 7.820.1 ＝ 1.47＝ 15﹦ 4.55= 0.480.24= 1.50.3= 2.50.5＝ 2.55＝ 2.50.5﹦ 口算专项训练（14） 3.60.1= 3.210= 9.30.3= 0.450.09= 40.4= 0.450.5= 844.2= 52.5= 2.40.6= 0.363= 0.120.03= 2.80.4= 4.84＝ 0.484＝ 0.480.4＝ 363= 3.63= 0.363= 82= 0.82= 80.2= 25= 6.622= 300.3= 0.480.24= 180.9= 164= 7.20.9= 3.62= 5.46= 6.40.8= 5.511= 7.515= 540.6= 0.490.7= 0.240.6= 1.83= 0.140.7= 05.32= 1.50.5= 205= 6.60.1= 0.427= 0.420.6= 0.480.8＝ 9.616＝ 30.5＝ 03.89＝ 7.820.1 ＝ 1.47＝ 15﹦ 2.50.5＝ 2.55＝ 2.50.5﹦ 2.90.1= 10.5= 0.21= 10.2= 9.93.3= 124=