Consider the standard algorithm for multidigit addition and subtraction, which makes its appearance in Grade 4 of the Common Core math standards.

Thus, our execution of the standard algorithm to compute 25 × 63 requires four small multiplications and some additions. What about the distributive approach? 25 × 63 = 25 × (60 + 3) = 25 × 60 + 25 × ...

This study analyzed children's use of mental computation strategies and the standard algorithm on multi-digit subtractions. Fifty-eight Flemish 4th graders of varying mathematical achievement level ...

The Numerical Mathematics Consortium announced the latest revision to a technical specification, introduced earlier this year, that defines an open mathematics semantics standard for numerical ...