Question

Calculeaza, respectand ordinea operatiilor.

a. 126 x 9 - 87 x 4
b. 500 - 2 x 100 + 3 x (87 + 13)
c. 18 + 8 x (100 - 15 x 6)
d. ( 15 + 15 x (15 - 15) + 15 x 15

Answer 1

a. 126×9-87×4 =
1134-348=786

b.500-2×100+3×(87+13)=
500-2×100+3×100=
500-200+300=
300+300=600

c.18+8×(100-15×6)=
18+8×(100-90)=
18+8×10=
18+80=98

d.15+15×(15-15)+15×15=
15+15×0+15×15=
15+0+225=
15+225=240

Sper că te-am ajutat !! : )
Succes !