SOL Prep

Number and Number Sense

Virginia SOL 2.NS.2

Demonstrate understanding of the ten-to-one relationships of the base 10 number system to represent, compare, and order whole numbers up to 999.

Study 2.NS.2 with SOL PrepBack to Grade 2 Math

What students need to be able to do

  • Write the three-digit whole number represented by a given model (e.g., concrete objects, pictures of base 10 blocks).
  • Read, write, and represent three-digit numbers in standard form, expanded form, and word form using concrete or pictorial representations.
  • Apply patterns within the base 10 system to determine and communicate the place (ones, tens, hundreds) and value of each digit in a three-digit whole number.
  • Investigate and explain the ten-to-one relationships among ones, tens, and hundreds using models.
  • Compose and decompose whole numbers up to 200 by making connections between models and counting strategies.
  • Plot and justify the position of a given number up to 100 on a number line with pre-marked benchmarks of 1s, 2s, 5s, 10s, or 25s.
  • Compare two whole numbers, each 999 or less, represented concretely, pictorially, or symbolically using words and symbols.
  • Order up to three whole numbers, each 999 or less, represented concretely, pictorially, or symbolically from least to greatest and greatest to least.