There are three drawers in the teacher's desk. Each drawer is 3.8 decimeters long and 2.2 decimeters wide. How many square meters does it take to make these three drawers Xiaoqiang's bedroom should be paved with 3cm thick wooden floor. The bedroom is 5m long and 4m wide. How many cubic meters of wood does it need at least? Use it quickly,

There are three drawers in the teacher's desk. Each drawer is 3.8 decimeters long and 2.2 decimeters wide. How many square meters does it take to make these three drawers Xiaoqiang's bedroom should be paved with 3cm thick wooden floor. The bedroom is 5m long and 4m wide. How many cubic meters of wood does it need at least? Use it quickly,

1. (0.38 × 0.25 + 0.25 × 0.12 × 2 + 0.12 × 0.38 × 2) × 3 = 0.7386 M2
2.4 × 5 × 0.03 = 0.6m3