Complete the Series

  • Post category:Vocabulary

Topic: Numbers

Mode: Interpretive

Level: Novice

Students will write the number that completes the pattern in a series of numbers.

Components of this activity: A worksheet

Instructions to the teacher

Below you will find several examples of different series of numbers. The one that is bolded and underlined is the one we suggest removing for students to fill in. Consider adding more questions to this activity and making it a race to increase fluency. 

Instructions to students

Fill in the blank with the number that completes the pattern.

  1. one, three, _____, seven, nine
  1. five, ten, ________, twenty, twenty-five
  1. two, four, _____, eight, ten
  1. three, six, _____, twelve, fifteen
  1. eight, twelve, ________, twenty-four, thirty-two
  1. ten, thirteen, ________, twenty-three, thirty
  1. two, four, _______, sixteen, thirty-two
  1. twenty-one, _________, fifteen, twelve, nine

Answer Key

  1. five
  2. fifteen
  3. six
  4. nine
  5. twenty
  6. twenty
  7. eight
  8. eighteen