Răspuns :
Răspuns:
4x9=36 lei
6x6=36 lei
5x3=15 lei
8x3=24 lei
2x2=4 lei
7x4=28 lei
TOTAL:
36 lei+36 lei+15 lei+24 lei+4 lei+28 lei=
=72 lei+39 lei+32 lei=
=111 lei+32 lei=143 lei
Sper că te-am ajutat!
[tex]4 \cdot 9 + 6 \cdot 6 + 5 \cdot 3 + 8 \cdot 3 + 2 \cdot 2 + 7 \cdot 4 =[/tex]
[tex]=36+6\cdot \:6+5\cdot \:3+8\cdot \:3+2\cdot \:2+7\cdot \:4[/tex]
[tex]=36+36+5\cdot \:3+8\cdot \:3+2\cdot \:2+7\cdot \:4[/tex]
[tex]=36+36+15+8\cdot \:3+2\cdot \:2+7\cdot \:4[/tex]
[tex]=36+36+15+24+2\cdot \:2+7\cdot \:4[/tex]
[tex]=36+36+15+24+4+7\cdot \:4[/tex]
[tex]=36+36+15+24+4+7\cdot \:4[/tex]
[tex]= 36+36+15+24+4+28[/tex]
[tex]=72+15+24+4+28[/tex]
[tex]=87+24+4+28[/tex]
[tex]=111+4+28[/tex]
[tex]=115+28[/tex]
[tex]=143[/tex]