contestada

What is the difference in height of Mount St. Helens before and after the eruption, expressed in meters

Respuesta :

2950 subtracted by 2550 equals 400 you subtract 
2950
-
2550
so subtract the 0's which equals 0
the subtract the 2nd furthest numbers (5-5)=0 
then subtract the next (9-5) = 4 
then 2-2 = 0 
so 400