3．直接写出得数
0 164943 164951 164957 164961 164967 164969 164973 164979 164981 164987 164993 164997 164999 165003 165009 165011 165017 165021 165023 165027 165029 165033 165035 165037 165038 165039 165041 165042 165043 165045 165047 165051 165053 165057 165059 165063 165069 165071 165077 165081 165083 165087 165093 165099 165101 165107 165111 165113 165119 165123 165129 165137 199269
| 1.2+8 | 24-18 | 30×60 | 540÷90 |
| $\frac{1}{4}$+2 | $\frac{4}{5}$×$\frac{3}{4}$ | $\frac{6}{9}$$÷\frac{6}{9}$ | $\frac{1}{3}$-$\frac{1}{5}$ |
| $\frac{7}{10}$×$\frac{1}{2}$ | $\frac{4}{15}$÷2 | $\frac{7}{18}$×$\frac{1}{14}$ | 8÷$\frac{4}{5}$ |
| $\frac{4}{15}$×$\frac{5}{8}$ | 2×$\frac{9}{20}$ | $\frac{3}{5}$÷$\frac{2}{3}$ | 15÷$\frac{1}{5}$ |