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I need help with this math​

I need help with this math​-example-1
User Krajol
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1 Answer

4 votes

Answer:

9870

Explanation:

There are 140 numbers so there are 70 pairs of numbers

The sum of each pair taking them from the ends is 1+140 = 141

(2+139) = 141 and (3+138 = 141) and so on

70 * 141 = 9870

The sum of all the number is 9870

User Rangi Lin
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