Question

In exercitiul 10×4:2₊8₋2, puneti paranteze daca e nevoie pentru a obtine pe rind rezultatele ;
a) 2;
b)5;
c)26;
d)80;
e)98.

Answer 1

a) 10x4:(2+8)-2=2;
b) 10x4:(2+8-2)=5;
c) (10x4:2)+8-2=26;
d) 10x(4:2+8-2)=80;
e) 10x(4:2+8)-2=98;

Answer 2

(10x4):2+8-2=40:2+8-2=20+8-2=28-2=26c)
10x4:(2+8)-2=40:10-2=4-2=2a)
10x(4:2+8)-2=10x(2+8)-2=10x10-2=10-2=98e)
(10x4):(2+8-2)=40:(10-2)=40:8=5b)
10x(4:2+8-2)=10x(2+8-2)=10x(10-2)=10x8=80d)