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?

What is the expanded form of the series represented below?

In January, Desmond begins saving $25 per month for a used car. Each month, he is able to save $5 more than the previous month. After how many months will Desmond first have enough money to purchase a $3,000 used car?

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?

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

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

What is the value of the arithmetic 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?

Which of the following represents the sum of the series below?4 + 7 + 10 + 13 + 16 + 19 + 22 + 25 + 28 + 31 + 34 + 37 + 40

Which of the following represents the sum of the series?6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 + 22 + 24 + 26