Exercitiul 2. Cine stie??

A) 25-10/100x25=25-1/10x25=25-25/10=25-2,5=22,5
B) 150+3/100x150=150+3/2x3=150+4,5=
154,5
C) 100-5/100x100=95
95-10/100x95=95-1/10x95=95-9,5=85,5