Rekenrek Ten Rows - Virtual Manipulative

Advanced Arithmetic on a 100-Bead Rack

An expanded version of the Rekenrek that allows for modeling addition and subtraction up to 100.

• How to Use: Slide beads on any of the ten rows. Each row follows the 5-red/5-white pattern to support subitizing.
• Classroom Idea: Model two-digit addition (e.g., 23 + 15) by moving beads on separate rows to visualize the tens and ones.