Make Me 100

Activity Type: Small Group
Multidigit +/- (Adding/Subtracting)
Multidigit +/- (Composing Numbers)

Quick Description:

One student (or team) enters a two-digit number. The other has to enter a single addition that will make the display “100.” Points can be kept.

Special Thanks To

Institute of Education Sciences
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.