Other

Question 1

What are the four possible digits that result in a number with the same units digit when squared?

Answer 1

0, 1, 5, 6

Question 2

what is the formula for the sum of consecutive integers?

Answer 2

n/2 *(n+1)

(n*(n+1))/2

Question 3

what is the formula for the sum of consecutive odd integers?

Answer 3

n^2 where n is the number of odd integers in the range

Question 4

what is the formula for consecutive even integers?

Answer 4

n(n+1)

where n is the number of even integers