If Alaska were divided into 10 equal pieces, then that means Florida would be the same size as one of those pieces. So write the equation
.
This is equal to
.
Now, when you divide a number by 10, the original number becomes one place value less. For instance, 2 ÷ 10 = 0.2.
We can see that 1,700,000 has 5 zeroes, so if you divide it by 10, the this means Florida is 170,000 sq km.
Hope this helped. :D