650,90 - 639,92 - 2,90
= (650,90 - 2,90) - 639,92
= 648 - 639,92
= 8,08
650.90-639.92-2.90
=(650.90-2.90)-639.92
=648-639.92
=8.08
tk nha
chuc mung nam moi
650,90-639,92-2,90
650,90-2,90-639,92
598-639,92
-41,92
k tớ nha
650,90 - 639,92 - 2,90
= (650,90 - 2,90) - 639,92
= 648 - 639,92
= 8,08
650,90 - 639,92 - 2,90
= (650,90 - 2,90) - 639,92
= 648 - 639,92
= 8,08
650,90 - 639,92 - 2,90
= (650,90 - 2,90) - 639,92
= 648 - 639,92
= 8,08