The pie weighs 4 pounds. If the amount left after being eaten is 10 times less than 4 pounds,
then only one-tenth (0.10) of the pie is left.
0.10 • 4 pounds = 0.4 pounds after being eaten
Overall, 0.04 is 10 times less than 0.4 one-tenth (1/10) of 0.4 is 0.04
0.4 is 10 times less than 4 or 1/10 of 4 is 0.4
4 is 10 times less than 40 1/10 of 40 is 4
40 is 10 times less than 400 1/10 of 400 is 40
To find 1/10 of any number, move the decimal one position to the left.
1/10 of 721 is 72.1
1/10 of 700 is 70
1/10 of 7.21 is 0.721