asked 221k views
2 votes
20+19+18+17+16+15+14+13+12+11+10+9+8+7+6+5+4+3+2+1=

2 Answers

4 votes

Answer:

210

Explanation:

add according to the sequence

1 vote

Answer:

210

Explanation:

answered
User Lamar
by
8.1k points

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