Question

Calculează:
a) 135:5+ [(21 + 8 - 3 x 7) x 4 - 15:5 x 4] =
820:4 - [(45: 9+8 3) x3 - 28:4x2] =
b) 812:4 - [10 x 9: (4 + 3 × 11 + 48: 6) +9] =
905:5+ [ 12 x 8 - (3 + 2 x 15 - 32:8) - 7] =​
Sunt 4

Answer 1

Răspuns:

135:5+[(21+8-3×7)×4-15:5×4]=

135:5+[(21+8-21)×4-15:5×4]=

135:5+[(29-21)×4-15:5×4]=

135:5+(8×4-15:5×4)=

135:5+(32-3×4)=

135:5+(32-12)=

135:5+20=

27+20=47

812:4-[10×9:(4+3×11+48:6)+9]=

812:4-[10×9:(4+33+8)+9]=

812:4-[10×9:(37+8)+9]=

812:4-(10×9:45+9)=

812:4-(90:45+9)=

812:4-(2+9)=

812:4-11=

905:5+[12×8-(3+2×15-32:8)-7]=

905:5+[12×8-(3+30-4)-7]=

905:5+[12×8-(33-4)-7]=

905:5+(12×8-29-7)=

905:5+(96-29-7)=

905:5+(67-7)=

905:5+60=

181+60=241