求小路的占地面积．请选择合理的方法计算，
①7.5×
+1.5×
-
②7
-3.25+2
-5.48
③（26-1.6÷
×
）÷（
-
）
④43×
+136×
+70×
．
①7.5×
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
②7
| 4 |
| 7 |
| 3 |
| 7 |
③（26-1.6÷
| 4 |
| 25 |
| 5 |
| 2 |
| 4 |
| 3 |
| 2 |
| 3 |
④43×
| 136 |
| 137 |
| 59 |
| 137 |
| 68 |
| 137 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 4 |
| 7 |
| 3 |
| 7 |
| 4 |
| 25 |
| 5 |
| 2 |
| 4 |
| 3 |
| 2 |
| 3 |
| 136 |
| 137 |
| 59 |
| 137 |
| 68 |
| 137 |