SOLUTION: Let K of J be defined as the sum of all integers between K and J. For example 5 of 9=6+7+8=21. What is the value of (80 of 110)-(81 of 109)?

SOLUTION: Let K of J be defined as the sum of all integers between K and J. For example 5 of 9=6+7+8=21. What is the value of (80 of 110)-(81 of 109)?

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Question 821106: Let K of J be defined as the sum of all integers between K and J. For example 5 of 9=6+7+8=21. What is the value of (80 of 110)-(81 of 109)?
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
Since these are fairly easy to do, we can write it out...
(80 of 110)-(81 of 109)=
(81+82+83+...+109) - (82+83+84+...+108)=
81+109=
190
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