25.calculati:
a) 3.(-5)-(-12)
b) (1-2+3-4):(-2)
c) (-45):(3-8)+(-2).2
….
![25calculati A 3512 B 12342 C 453822 class=](https://ro-static.z-dn.net/files/d5d/d7653e12a7cbdd21bce537da39b7970c.png)