Răspuns:
a)5710,234
b)7800,311
c)50.000,00007
Explicație pas cu pas:
a) 5X10^3+7X10^2+10+2x1/10+3X1/10^2+4x1/10^3
=5000+700+10+2/10+3/100+4/1000
=5710,234
b)7X10^3+8x10^2+3X1/10+11x1/10^3=
7000+800+3/10+11/1000=7800+0,3+0,011=
7800,311
c) 5X10000+7/10^5=
50000,00007