Question

Calculează, respectând regulile învățate.
a) (7 X 7 + 7 : 7) x 7
(20:2+28) x 2
(18 x 2 + 18): 6
b) 196 -3 (89 - 45)
36 x 2 x (12 + 47)
15 + 60 : (39-29)
c) 1 000 - (35 + 60 X 2) + 40
999 + (10 : 2 x 4) - 501
50 + (40 + 80 X 100) - 50​

Answer 1

Răspuns:

a) (49+1)×7 = 50×7 = 350

(10+28)×2 = 38×2 = 76

(36+18):6 = 54÷6 = 9

b) 196-3×44 = 196-132 = 64

72×59 = 4248

15+60:10 = 15+6 = 21

c) 1000-(35+120)+40 = 1000-155+40=845+40=895

999+(5×4)-501 = 999+20-501 = 1019-501 = 518

50+(40+8000)-50 = 50+8040-50 = 8040