2．
0 158022 158030 158036 158040 158046 158048 158052 158058 158060 158066 158072 158076 158078 158082 158088 158090 158096 158100 158102 158106 158108 158112 158114 158116 158117 158118 158120 158121 158122 158124 158126 158130 158132 158136 158138 158142 158148 158150 158156 158160 158162 158166 158172 158178 158180 158186 158190 158192 158198 158202 158208 158216 199269
| 直接写出得数． 1.25-$\frac{3}{4}$= | $\frac{6}{17}$÷6= | 3.21÷100%= | 3.6÷0.036﹦ |
| $\frac{1}{7}$×7÷$\frac{1}{7}$×7= | （0.25+$\frac{3}{4}$）×$\frac{7}{10}$= | 6÷（$\frac{1}{2}$-$\frac{1}{3}$）﹦ | 1-$\frac{2}{5}$+$\frac{3}{5}$= |