Question

Ex.de la aplic!va rog frumos!

Answer 1

69*6=(60+6)*6  =60*6+6*6  =360+36  396

285*9=(200+80+5)9  =200*9+80*9+5*9  =1800+720+45  =2565

248*7=(200+40+8)7  =200*7+40*7+8*7  =1800+280+56  =2136

1043*6=(1000+40+3)*6  =1000*6+40*6+3*6  =6000+240+18  =6258

13025*2=(10000+3000+20+5)2  =10000*2+3000*2+20*2+5*2  =20000+6000+40+10 =26050

116241*2=(100000+10000+6000+200+40+1)2  =100000*2+10000*2+6000*2+200*2+40*2+1*2  =200000+20000+12000+400+80+2 
=232482