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Efectueaza exercitiile duoa modelul dat.
a) 36*24
b) 135*17

Modelul:

23*13=23*10+23*3=23*(10+3)=
        =230+(20+3)*3=
        =230+20*3+3*3=
         =230+60+9=
        =299


Răspuns :

36*24=36*20+36*4=36(20+4)=720+(30+6)*4=720+30*4+6*4=720+120+240=1080