Question

7. Calculaţi: a)-12-8+7; d) -7-15-21; b) 9-16-3; e) 6-14+8; c) 25-28-7; f)-9-7+11.​

Answer 1

Răspuns:

salut

Explicație pas cu pas:

a)-12-8+7=

-20+7=-13

-7-15-21=

-(7+15+21)=

-(22+21)=-43

b)9-16-3=

9-19=-10

c)6-14+8=

14-14=0

e)25-28-7=

25-35=-10

f)-9-7+11=

-16+11=-5