Question

scrieti nr. naturale ce au urmatoarele descompuneri: 4x10^5+3x10^3+8x10= ?

Answer 1

$4* 10^{5} +3* 10^{3}+8*10= 10(4* 10^{5} +3* 10^{2} +8)=$
$10(4*10000+3*100+8)= 10(4000+308)= 10*40308= 403080$

$510^{4} +2* 10^{2} +7*10+7*10+2=$
$510^{4} +2*100+70+70+2=$
$510^{4} +342=67652010000+342=67652010342$