五年級數(shù)學上冊口算題

1、1五年級數(shù)學上冊口算題五年級數(shù)學上冊口算題第一單元第一單元三峽工程（一）三峽工程（一）——小數(shù)乘法小數(shù)乘法第一課時第一課時小數(shù)乘整數(shù)小數(shù)乘整數(shù)（新授）（新授）口算口算323=323=603=603=1810=1810=0.007100=0.007100=6100=6100=492=492=127=127=24100=24100=3.136100=3.136100=63.6100=63.6100=434=434=725=725=2.671

2、0=2.6710=36.710=36.710=1.356100=1.356100=324=324=825=825=0.136100=0.136100=0.3100=0.3100=2.310=2.310=第二課時第二課時小數(shù)乘整數(shù)（練習）小數(shù)乘整數(shù)（練習）計算計算149=149=3.142=3.142=4.44200=4.44200=232.00=232.00=0.133=0.133=178=178=51.7=51.7=2.840=2.8

3、40=1.2580=1.2580=0.67=0.67=204=204=2.54=2.54=1005.176=1005.176=3.520=3.520=0.125=0.125=423=423=5.260=5.260=36.2=36.2=0.2540=0.2540=1.220=1.220=第三課時第三課時小數(shù)乘小數(shù)（新授）小數(shù)乘小數(shù)（新授）計算計算1.23=1.23=2.540=2.540=2.410=2.410=40.05=40.05=3

4、.52=3.52=0.374=0.374=0.374=0.374=2.540=2.540=100.07=100.07=1.46=1.46=0.187=0.187=1.54=1.54=20.05=20.05=0.144=0.144=3.85=3.85=3.73=3.73=0.68=0.68=31.7=31.7=0.057=0.057=8.79=8.79=第四課時第四課時小數(shù)乘小數(shù)（練習）小數(shù)乘小數(shù)（練習）口答它們的積有幾位小數(shù)口答它們的積

5、有幾位小數(shù)0.452.5=0.452.5=0.021.7=0.021.7=0.10.01=0.10.01=68.5912.23=68.5912.23=0.360.2=0.360.2=3第一課時第一課時計算計算9.40.3=9.40.3=0.170.06=0.170.06=0.792=0.792=0.58.1=0.58.1=4.50.6=4.50.6=6.50.9=6.50.9=1.020.09=1.020.09=0.061.9=0.06

6、1.9=0.147=0.147=3.970=3.970=0.85=0.85=0.830.6=0.830.6=1.60.7=1.60.7=2.80.3=2.80.3=0.89.7=0.89.7=9.45=9.45=0.980.09=0.980.09=900.1=900.1=0.27.5=0.27.5=0.042.5=0.042.5=計算計算第二課時第二課時1.90.9=1.90.9=430.9=430.9=0.157=0.157=1.30

7、.7=1.30.7=0.67.6=0.67.6=4.40.2=4.40.2=8.35=8.35=0.91.5=0.91.5=3.60.2=3.60.2=9.40.3=9.40.3=4.80.2=4.80.2=7.80.3=7.80.3=0.320=0.320=650.4=650.4=2.90.4=2.90.4=1.20.8=1.20.8=9.64=9.64=0.86.1=0.86.1=6.550=6.550=0.33.5=0.33.5=

8、計算計算第三課時第三課時3.23.2=3.23.2=2.80.4=2.80.4=0.40.8=0.40.8=3.5200=3.5200=2.30.4=2.30.4=3.72.3=3.72.3=0.32500=0.32500=1.60.4=1.60.4=2.63=2.63=300.1=300.1=13.10.73.10.7=13.10.73.10.7=0.80.41.25=0.80.41.25=7.50.122.50.12=7.50.12