Lets spouse that you have this 12,5-19,54. How can you solve that?
12.5-19.54 = -(19.54-12.5) = 7.04
12.5-19.54 = -(19.54-12.5) = - 7.04 !!
12,5 - 19,54 = ? How can you solve that?
12,5 - 19,54 = - (19,54 - 12,5)
19,54
− 12,5 _
= 7,04
12,5 - 19,54 = - 7,04
!