Find the following sums:
1 + 2 = 1 + 2 + 3 = 1 + 2 + 3 + 4 = 1 + 2 + 3 + 4 + 5 = 1 + 2 + 3 + 4 + 5 + 6 = 1 + 2 + 3 + 4 + 5 + 6 + 7 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 =
Make a graph of the formula.
Homework:
1 + 3 = 1 + 3 + 5 = 1 + 3 + 5 + 7 = 1 + 3 + 5 + 7 + 9 = 1 + 3 + 3 + 7 + 9 + 11 = 1 + 3 + 3 + 7 + 9 + 11 +13 =
Is there a formula for the sum of odd numbers?
What is the formula for the sum of odd numbers?
2 + 4 = 2 + 4 + 6 = 2 + 4 + 6 + 8 = 2 + 4 + 6 + 8 + 10 = 2 + 4 + 6 + 8 + 10 + 12 = 2 + 4 + 6 + 8 + 10 + 12 +14 =
What is the formula for the sum of even numbers?