I have no idea :/
5400 divided by 9 is 600 with remainder 0.
Since 54/9=6, 5400/9 is just the quotient of 54/9 multiplied by 100, since 54*100=5400. 5400/9 is indeed 600, which is 6*100.
9 tens is 90. 90 of 70 is 630.
9 tens are = to 90.
9
8
90
9
60
6
Nine tens = 90 Ten ones = 10 90 + 10 = 100
900 / 10 = 90There are 90 tens in 9 hundred