1.下面是闰年的是( )
A. | 1900 | B. | 1998 | C. | 2014 | D. | 2016 |
16.列竖式计算.打星号的要验算
0 156741 156749 156755 156759 156765 156767 156771 156777 156779 156785 156791 156795 156797 156801 156807 156809 156815 156819 156821 156825 156827 156831 156833 156835 156836 156837 156839 156840 156841 156843 156845 156849 156851 156855 156857 156861 156867 156869 156875 156879 156881 156885 156891 156897 156899 156905 156909 156911 156917 156921 156927 156935 199269
342÷3= | 804÷5= | *2040÷6= |
504÷5= | 45×12= | *520×4= |