Number Chart 1 to 80 - Virtual Manipulative

Mastering the High Tens

A digital workspace for exploring the late stages of two-digit counting and place value.

• How to Use: Select a color and highlight counting patterns. Use the “Up” button to reverse the numerical order.
• Classroom Idea: Practice mental math “jumps”—start at 42, jump down one row (+10), and move right two spaces (+2).