Question 1162164
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Another path to the answer without algebra, accessible to young students....<br>
The first term is 1; each term is 2 more than the preceding term; the last term is 101.<br>
How many 2's do you need to add to the first term, 1, to get the last term, 101?  Answer: (101-1)/2 = 100/2 = 50.<br>
So there are 50 terms after the first one; that means there are 51 terms.<br>