Question

5
Se dau numerele:
a = 2 + 3 x (2 + 8) - 9x0
b = 2 x 4x5-4x 9 + 2 x 1
C = 3 x 4 x 2 x 10 x 0 + 2
Calculează:
a- b x C =
a-b+ 5xC=
a-2 x(b + c) =
Ajutor

Answer 1

a = 2+3 x 10 - 0 = 2+30 = 32

b = 40 - 36 + 2 = 4 +2 = 6

c = 0 + 2 = 2

a-b x c = 32 - 6 x 2 = 32 - 12 = 20

a-b+5 x c = 32-6 + 5 x 2 = 26 + 10 = 36

a-2 x(b+c) = 32-2x(6+2) = 32- 2 x 8 = 32 - 16 = 16