12+13+5+70=
100
1000-200-400-350=
50
50/5/2=
5
2x5x10=
1260-35.3-24.7/2x3-800.1
999.9
120+60+31.9+8=
199.9
1356-50-306-999.9=
0.1
1200/2/6/10=
10
13x3x2=
78
2000/10-300+1800-700/2=
500
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