Calculati:
(2+3×4)×7-(8+2+6)=...............

(3+3+1)×9-(1+5+2)×5=................

2×(2×2+4)+3×(3+3+1)=...............

3×(10-3-2)+9×(9-3-1)=..................

VA ROOOG! Dau coroana la primul raspuns repede


Răspuns :

a)
(2+12)×7-16=
14+84-16=
98-16=82
b)
7×9-8×5=
63-40=23
c)
2×(4+4)+3×7=
2×8+3×7=
16+21=37
d)
3×5+9×5=
15+45=60