Progressions bingo

Exercise and reference answers

Clues and terms

1. Clue

   Fixed gap between terms.

   Item

   Common diff

2. Clue

   Where the list starts.

   Item

   First term

3. Clue

   Uses a plus (n-1)d.

   Item

   nth term

4. Clue

   Has a last term.

   Item

   Finite AP

5. Clue

   Runs on with no end.

   Item

   Infinite AP

6. Clue

   Adds the first n of them.

   Item

   Sum n terms

7. Clue

   Middle of two numbers.

   Item

   Arith mean

8. Clue

   Every term is equal.

   Item

   Zero diff

9. Clue

   One to hundred is 5050.

   Item

   Gauss sum

Instructions

Read each clue and tap the term it describes.

Explanation