Computation and Estimation

Virginia SOL 4.CE.1

Estimate, represent, solve, and justify solutions to single-step and multistep problems involving addition and subtraction with whole numbers.

What students need to be able to do

  • Determine and justify whether an estimate or an exact answer is appropriate for contextual problems involving addition and subtraction with whole numbers.
  • Apply strategies (e.g., rounding, compatible numbers) to estimate solutions for single-step or multistep addition or subtraction problems with whole numbers.
  • Apply strategies and algorithms, including the standard algorithm, to determine the sum or difference of two whole numbers.
  • Estimate, represent, solve, and justify solutions to single-step and multistep contextual problems involving addition and subtraction with whole numbers up to 1,000,000.