Question

Afla nr. necunoscut :a) 12500- a =3642 b) b + 421000 = 509210 c) c - ( 28+ 16 -9 ) = 300 d) 48 -12 + d =1904 si verificare.

Answer 1

12500-3642=a

a=8858

V:12500-8858=3642

b). b=509210-421000

b=88.210

V: 88210+421000=509.210

c).  c-35=300

c=300+35=335

V: 335-35=300

d).36+d=1904

d=1904-36=1868

V: 48-12+1868=1904

Answer 2

a)12500-a=3642

a=12500-3642

a=8858

V(verificare):12500-8858=3642

B)b+421000=509210

b=509210-421000

b=88210

V:88210+421000=509210

Atata stiu !Sorry totusi sper sa te fi ajutat cu ceva!