Question

Arrange in order of decreasing magnitude using the > symbol (largest number would be at the left, smallest at the right). 3.98 3.89 3.99

Answer 1

Since the tenths place is a greater order of magnitude than the hundredths place and .9 > .8, both 3.98 and 3.99 are greater than 3.89. Now, looking at the hundredths place, since .09 > .08, 3.99 > 3.98. Putting it all together, the numbers in decreasing magnitude are

$\bf 3.99 \ \textgreater \ 3.98 \ \textgreater \ 3.89$