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calculeaza in doua moduri. (2+3+4)×7, (6+1+2)×4

Răspuns :

(5+4)×7(7+2)×4=
9×7×9×4=
63×36=
2268
a)(2+3+4)*7=9*7=63
(7*2)+(7*3)+(7*4)=63
b)(6+1+2)*4=8*4=32
(6*4)+(1*4)+(2*4)=32