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what is 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20-19-18-17-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-1=?
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what is 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20-19-18-17-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-1=?

User Makarius
by
8.6k points

1 Answer

2 votes

Answer:

It's 20

Explanation:

Adding and Subtracting

~~~~~~~~~~~~~~~~~~~~~~~~~

GL :)

User Cristian Bujoreanu
by
8.2k points
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