Question

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

Answer 1

Răspuns:

Explicație pas cu pas:

a) 135:5+[(21+8-3×7)×4-15:5×4]=27+[(29-21)×4-12]=27+(8×4-12)= 27+(24-12)=27+12=39

b) 812:4-[10×9:(4+3×11+48:6)+9]= 203-[90:(4+33+8)+9]= 203-(90:45)+9=203-2+9=210

905:5+[12×8-(3+2×15-32:8)-7]= 181+[96-(3+30-4)-7]= 181+(96-29-7)=181-60=121