If you need 10 networks, you can find the smallest number bigger than 10 in the max networks row.
It is 14. Directly above 14 is 4, so we must borrow 4 host bits to get 10 networks.
Our delta value is 16 and our subnet mask value is 240 (255.255.255.240).
We can use the delta value to determine our networks. We do this by simply incrementing the delta.
The first and last networks are usually thrown out so we will skip 0.
16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, and 224.
That gives us 14 networks.

If we were using 192.168.0.0 our first network would be 192.168.0.16.
The second would be 192.168.0.32, the third 192.168.0.48 and so on.
The host range of the first network would be 192.168.0.17 - 192.168.0.30.
The broadcast address of the first network would be 192.168.0.31.
This configuration would allow for 14 hosts on each network.

For a subnetted class C address you can subract 2 from the delta value to get the number of hosts per network. The general way to get the number of hosts per network is 2(to the power of N) - 2. N being the number of host bits in the subnet mask.