7)490000g=490kg
3000 cg=0.03
490+0.03=490.03 kg
8)40000+40×500=24000dg
24000dg=240hg
9)2h=43200 s
10min=600s
43200+600+30=43590s
10)31 zile×24 ore=744 ore
12)x=abb+baa
x/111
x=100a+ 10 b+ b+ 100b+ 10a +a
x=111a+111b
x=111 (a+b)/111
Sper ca te-am ajutat. Apropo pe 11 nu l-am stiut
