Adding/Subtracting Problem Types
Activity Type: Teacher Resources
Problem Solver +/- (Adding/Subtracting) Deriver +/- (Composing Numbers) Numbers-in-Numbers +/- Part-Whole +/- Counting Strategies +/- Find Change +/- Make It N Find Result +/- Small Number +/- Multidigit +/- (Adding/Subtracting) Problem Solver +/- (Composing Numbers) Deriver +/- (Adding/Subtracting) Multidigit +/- (Composing Numbers)
Problem types range in difficulty and unknown throughout the adding/subtracting LT.
Special Thanks To
The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through grant numbers R305K050157, R305A120813, R305A110188, and R305A150243. to the University of Denver. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.