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Karo-lina-s [1.5K]
3 years ago
9

What is the some of the counting numbers from 1 to 80?

Mathematics
1 answer:
kumpel [21]3 years ago
7 0
There is a formula for adding consecutive numbers:
total = n*(n+1)/2
total = 80*(81)/2
total = 3,240

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