write the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 and this order and insert + or - between them to get 7
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Answer:
0+7=7
1+6=7
2+5=7
3+4=7
4+3=7
5+2=7
6+1=7
7+0=7
8-1=7
9-2=7
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