Arithmetic Series Answers

A child is building a triangular tower. The first (bottom) row of the 12-row tower is made with 12 blocks. Each successive row uses one less block. Which equation represents the total number of blocks used in the tower?

Which expression represents the value of the series below?3 + 7 + 11 + 15 + ... + 1,671

For a fund-raiser, Anthony earns $5 for the first mile he runs, an additional $7 for the second mile, an additional $9 for the third mile, and so on. The expression represents the total amount of money Anthony earns if he runs 10 miles. How much does Anthony earn if he runs 10 miles?

What is the expanded form of the series represented below?

The sum of an 84-number series is –7,980. What is the sum of the first and last numbers?

The manager of a store is stacking boxes for a display. There are 18 boxes on the bottom row. Each successive row has one less box than the previous row. The expression represents the total number of boxes in the display for the first 15 rows. How many boxes are in the display?

What is the sum of the numbers in the series below?15 + 11 + 7 + . . . + (–129)

Which of the following represents the sum of the series below?

Which of the following represents the value of the series below?

Each year, the number of students taught by Mr. Wright increases by 2. The first year, he taught 18 students. The total number of students taught after 25 years can be represented using the expression . How many students has Mr. Wright taught in 25 years?