Answer:
1. 100cm
2. 300.1cm
3. 200cm
4. 400cm
5. 299.00cm
Step-by-step explanation:
300-200=100
300+0.01=301
300-100=200
300+100=400
300-0.01=299.99
Student 1 and 3.

Move the negative into the brackets,
positive becomes negative while two negatives make a positive.
Answer:
10 units
Step-by-step explanation:
use distance formula: d = square root of the difference of the y-values minus the difference of the x-values
d = 
d = 
d = 
d = 10 units