Here is a multiplication table generator function that is a bit smarter. And, its also fun to see what happens when you place different number forms in there. For example, if you pass in the first number with a decimal point only all output shall have a decimal. This does not hold if you pass in the second number with a decimal point. Also, be careful when passing exponents. You just might end up with a crazy large table.

While a utility function probably exists somewhere in M, yet I do not know what such function is called. While I welcome enhancements and optimizations, the formatting is my own personal style so please feel free to ignore it in favor of your own conventions.

Edit; Now handles inverted ranges.

genMultiTable[low_, high_] := Module[ 
  {x , y, l, h, s, lh, hh},
  (* Later expand functionality by handling options *)
  (* 
  Needs two vars otherwise the headings do not work *)

  s = If[high < low
    , -1
    , 1
    ]; 
  l = low;
  h = high;
  x = y = low;
  lh = hh = Range[low, high, s];
  Table[x*y, {x, l, h, s}, {y, l, h, s}]
    // TableForm[# , TableAlignments -> Right, 
      TableHeadings -> {lh, hh} ] & 
    // Framed[#, FrameStyle -> {Thick, Blue} ] &
  ]

Thanks much. I'm pretty new to Mathematica. So this is the best way to learn!

Yet another version:

Table[i j, {i, 12}, {j, 12}] //
TableForm[#, TableAlignments -> Right, TableHeadings -> Automatic] & //
Framed[#, FrameStyle -> {Thick, Blue}] &

Another method :

Grid[Table[  a*b, {a, 1, 12}, {b, 1, 12}], {Frame -> {{Left}, {Top}}}]

OR

Grid[Table[  a*b, {a, 1, 12}, {b, 1, 12}], {Dividers -> {{None, 1}, {None, 1}, }}]

You can simplify that code a bit:

TableForm[
 Table[i j, {i, 12}, {j, 12}],
 TableHeadings -> Automatic
 ]

Benjamin,

This is exactly what I meant. I tried to use the command AppendTo, but I was having some trouble and ended up creating more code than I needed. It produced the same table but was very tedious...I am a novice in Mathematica but picking up on things quickly..

This is how I went about it, like I said very tedious. If you can use one line of code vs ten lines of code then I would always choose one line of course..

clear[Num4];

Num4 = Table[{i*j}, {i, 1, 12, 1}, {j, 1, 12, 1}]; PrependTo[Num4, {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}]; PrependTo[Num4[[1]], 0]; PrependTo[Num4[[2]], 1]; PrependTo[Num4[[3]], 2]; PrependTo[Num4[[4]], 3]; PrependTo[Num4[[5]], 4]; PrependTo[Num4[[6]], 5]; PrependTo[Num4[[7]], 6]; PrependTo[Num4[[8]], 7]; PrependTo[Num4[[9]], 8]; PrependTo[Num4[[10]], 9]; PrependTo[Num4[[11]], 10]; PrependTo[Num4[[12]], 11]; PrependTo[Num4[[13]], 12];

Like I said, very tedious and almost pointless, although it DID give me the result I wanted, but time is of essence for things like this. I don't even know how to properly include my code in this post so it looks nice and not messy like what it looks like now.

Thank you for your help. I appreciate it.

Brandon