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Earn +20 ptsQ: Plus 12 plus -13 plus plus 1?
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What is 1 plus 12 plus 15 plus 2 plus 29?
1+12=13+15=28+2=30+29=59.
What is the difference between -1 and plus 12?
13 if you refer to a number line. If you subract you will get -1-12 = -13
What is 1 plus 2 plus 3 plus 4 plus 5 plus 6 plus 7 plus 8 plus 9 plus 10 plus 11 plus 12 plus 13 plus 14 plus 15 plus 16 plus 17 plus 18 plus 19 plus 20?
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = 210
What is 1 plus 2 plus 3 plus 4 plus 5 plus 6 plus 7 plus 8 plus 9 plus 10 plus 11 plus 12 plus 13 plus 14 plus 15?
The sum of integers from 1 to n is n/2 times (n + 1), in this case 7.5 x 16= 120
What is 24 plus 23 plus 22 plus 21 plus 20 plus 19 plus 18 plus 17 plus 16 plus 15 plus 14 plus 13 plus 12 plus 11 plus 10 plus 9 plus 8 plus 7 plus 6 plus 5 plus 4 plus 3 plus 2 plus 1 equals?
24 + 23 + 22 + 21 + 20 + 19 + 18 + 17 + 16 + 15 + 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 300
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