Question

Calculați:
[450:5:(3500:700inmultit 80-40inmultit9) înmulțit (64:8)]:9-(72:6):(81:27)

Answer 1

Răspuns:

[450:5:(3500:700×80-40×9)×(64:8)]:9-(72:6):(81:27)=

=[90:(5×40×9)×8]:9-12:3=

=(90:1800×8) :9-4=

Aici cred ca ai gresit ceva ca nu se poate 90:1800

Answer 2

[90:(5x80-360)x8]:9-12:3

=[90:(400-360)x8]:9-4

=[90:40x8]:9-4

=[2.25x8]:9-4

=18:9-4=2-4=(-2)