9.口算
84÷4= | 0÷45= | 30×60= | 40×22= |
270×0= | 1600÷8= | 302×4= | 61×9≈ |
8.16×11的积的最高位是( )
0 157871 157879 157885 157889 157895 157897 157901 157907 157909 157915 157921 157925 157927 157931 157937 157939 157945 157949 157951 157955 157957 157961 157963 157965 157966 157967 157969 157970 157971 157973 157975 157979 157981 157985 157987 157991 157997 157999 158005 158009 158011 158015 158021 158027 158029 158035 158039 158041 158047 158051 158057 158065 199269
A. | 万位 | B. | 千位 | C. | 百位 |