2．直接写得数．
0 158010 158018 158024 158028 158034 158036 158040 158046 158048 158054 158060 158064 158066 158070 158076 158078 158084 158088 158090 158094 158096 158100 158102 158104 158105 158106 158108 158109 158110 158112 158114 158118 158120 158124 158126 158130 158136 158138 158144 158148 158150 158154 158160 158166 158168 158174 158178 158180 158186 158190 158196 158204 199269
| 0.16×8÷0.16×8= | $\frac{1}{4}$+$\frac{3}{4}$×12= | 3.6×50%= |
| 1.25×3.72×0.8= | 6-$\frac{2}{9}$= | （$\frac{1}{2}$-$\frac{1}{3}$）×6= |