The Soroban Site of the Visual Math Institute

Soroban Drills

Talking Drills

Click to choose a drill at random and hear it spoken by Hiroko Tojo.
  • Soroban Talking-Drill #4M
    Mixed drill for Tutorial #4: Unit beads 1 to 4. (1/19/2011)
    Add and/or subtract four numbers, totalling 4
  • Soroban Talking-Drill #5A
    Addition drill for Tutorial #5: Using the Five-Bead without jumps. (1/20/2011)
  • Soroban Talking-Drill #5AJ
    Addition drill for Tutorial #5: Using the Five-Bead with jumps. (1/20/2011)
  • Soroban Talking-Drill #5S
    Subtraction drill for Tutorial #5: Using the Five-Bead without jumps. (1/20/2011)
  • Soroban Talking-Drill #5SJ
    Subtraction drill for Tutorial #5: Using the Five-Bead with jumps. (1/20/2011)
  • Soroban Talking-Drill #5M (2/18/2011)
    Subtraction and Addition drill for Tutorial #5: Using the Five-Bead with jumps.
    Add and/or subtract four numbers, totalling 5
  • Soroban Talking-Drill #D2
    Mixed drill for double jumps. (1/11/2011)
    Add and/or subtract four numbers, totalling 10
    • Revised 18 February, 2011 by Ralph Abraham