Answer: See explanation
Step-by-step explanation:
Your question isn't clear but let me give you different scenarios.
1. Subtract 15cm from 2m
First and foremost, we have to realize that 1m = 100cm, therefore 2m = 2 × 100cm = 200cm
To subtract 15cm from 2m would be:
= 2m - 15cm
= 200cm - 15cm
= 185cm
= 1.85m
2. Subtract 15.2cm from 20.
This will give: = 20 - 15.2cm
3. Subtract 15cm from 20cm
This will be:
= 20cm - 15cm
= 5cm
4. Subtract 15.2cm from 20cm. This will be:
= 20cm - 15.2cm
= 4.8cm