Other Flashcards
1
Q
What are the four possible digits that result in a number with the same units digit when squared?
A
0, 1, 5, 6
2
Q
what is the formula for the sum of consecutive integers?
A
n/2 *(n+1)
(n*(n+1))/2
3
Q
what is the formula for the sum of consecutive odd integers?
A
n^2 where n is the number of odd integers in the range
4
Q
what is the formula for consecutive even integers?
A
n(n+1)
where n is the number of even integers
