asked 66.7k views
0 votes
1920+(?1820)+1720+(?1620)+ ... +(?420)+320+(?220)+120= Can I get an answer to this in the hour please? Thank you.

asked
User Yuceel
by
8.4k points

1 Answer

5 votes

520 will be the answer

answered
User Jay Wardell
by
7.9k points
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