Advent Puzzles 2014: puzzle 14 solution

Most numbers have several solutions. One solution for each possible total is given below.

1=((12\div4)\times3)-8
2=8-3-(12\div4)
3=3+4+8-12
4=(3\times12)-(4\times8)
5=4+12-3-8
6=((12+4)\div8)\times3
7=12-3-(8\div4)
8=(3\times4)-12+8
9=((3\times4)\div12)+8
10=(4-(8\div12))\times3
11=3+4+12-8
12=(8-4-3)\times12
13=8+12-3-4
14=3+8+(12\div4)
15=(8-3)\times(12\div4)
16=(3\times8)+4-12
17=(4\times8)-3-12
18=(12-3)\times(8\div4)
19=3+8+12-4
20=((4-3)\times12)+8
21=4+8+12-3
22\mbox{ cannot be made.}
23=(4\times8)-12+3
24=(3\times12)-4-8

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