Question

7. Efectuați: a) 600 − 300 : (200 −125); b) [156 − 9 · (132 −112)] : 19; c) (123 + 132 )0 + 12 · 13; d) (25 − 33 )2 + 224 : 411 .​

Answer 1

Răspuns:

a) 600-300:(200-125)

=600-300:75

=600-4

= 596

b)[126-9•(132-112)]:19

=(126-9• 10) :19

=(117 •10) :19

=1170 :19

= 60 (rest 30)

c) (123+133)•0+12•13

= 10•0+12•13

= 0+12•13

= 12•13

= 156

d) (25-33) 2+224:411

= 8•2+224:411

= 16+230:441

= 230:441

= 0(rest 441)