Răspuns :

Răspuns:

a) (m-416:4+2) •5=1980

(m- 104+2)=1980:5

m-104+2=396

m-104=396-2

m-104=394

m =394+104

m=498

b)2•248+a=842

496+a=842

a=842-496

a=346

b-387:3=414

b-129=414

b=414+129

b=543

d)6•6=606 nu e complet

(795:5-154)•m=715

(159-154)xm=715

5xm=715

m=715:5

m=143