Answer :
#2.
640,739 = 600,000 + 40,000 + 0 + 700 + 30 + 9
#3.
102,453 = 100,000 + 0 + 2,000 + 400 + 50 + 3
#4.
460,053 = 400,000 + 60,000 + 0 + 0 + 50 + 3
640,739 = 600,000 + 40,000 + 0 + 700 + 30 + 9
#3.
102,453 = 100,000 + 0 + 2,000 + 400 + 50 + 3
#4.
460,053 = 400,000 + 60,000 + 0 + 0 + 50 + 3