20.直接写出得数:
0 159957 159965 159971 159975 159981 159983 159987 159993 159995 160001 160007 160011 160013 160017 160023 160025 160031 160035 160037 160041 160043 160047 160049 160051 160052 160053 160055 160056 160057 160059 160061 160065 160067 160071 160073 160077 160083 160085 160091 160095 160097 160101 160107 160113 160115 160121 160125 160127 160133 160137 160143 160151 199269
486+114= | $\frac{3}{4}$-$\frac{1}{5}$= | 0.1+99×0.1= | $\frac{5}{42}$×6= |
$\frac{2}{3}$+1÷$\frac{3}{7}$= | 0.25×$\frac{6}{7}$×4= | 1.1×$\frac{5}{8}$-62.5%= | $\frac{4}{5}$×$\frac{9}{32}$÷$\frac{3}{4}$×$\frac{2}{3}$= |