Number Sense

My Definition

Key Characteristics

The following are true of number sense:

  • Number sense includes proficiency with mental math, reasonable estimation, and connections among the four operations.

  • Number sense is an understanding of numbers and number relationships, including symbolic representations such as number sentences.

  • Number sense includes the ability to use numbers to solve problems fluently and flexibly.


Use the link below to further study examples of number sense.

Number Sense Activity


Image of four small blue counters and three large red counters

A student who lacks number sense might say, "There are more red counters than blue counters."

TEKS: (1)(C) for each grade level and course.