supply the missing number
pls help I need to finish math module

Answer:
1. 6.7m³
2.28000cm³
3.0.00115m³
4.4000000cm³
5.8000dm³
Answer:
1.6.7m³
2.2800cm³
3.0.0115m³
4.4,000,000cm³
5.8000dm³