Răspuns :
primul mod:
(12×23)+(15×18)=276+270=546
Al doilea mod:
12×23=276
15×18=270
276+270=546
1). (12•23)+(15•18)=
=276+270
=546
2). 12•23=276
15•18=270
276+270=546
Sper ca e bine!Succes.
=276+270
=546
2). 12•23=276
15•18=270
276+270=546
Sper ca e bine!Succes.