Visual Soroban Project

The Soroban Site of the Visual Math Institute

Soroban Drills

Lists of Full drill exercizes.

Soroban Drill #0 Smart Moves. (10/23/2010) Soroban Drill #4A-2 Addition drill for Tutorial #4: Unit beads 1 to 4. (1/10/2011) Addition of two numbers Soroban Drill #4S-2 Subtraction drill for Tutorial #4: Unit beads 1 to 4. (1/10/2011) Subtraction of two numbers Soroban Drill #4M-4 Mixed drill for Tutorial #4: Unit beads 1 to 4. (1/11/2011) Addition and subtraction of four numbers totalling 4 Soroban Drill #5A-2 Addition drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Addition of two numbers without jumping the bar Soroban Drill #5AJ-2 Addition drill for Tutorial #5: Using the Five Bead with jumps. (9/19/2010) Addition of two numbers requiring jumping the bar Soroban Drill #5S-2 Subtraction drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Subtraction of two numbers without jumping the bar Soroban Drill #5SJ-2 Mixed drill for Tutorial #5: Using the Five Bead. (10/02/2010) Subtraction of two numbers requiring jumping the bar Soroban Drill #5M-2 Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011) Addition or subtraction of two numbers involving the five-bead Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Smart Moves. (10/23/2010)
Soroban Drill #4A-2 Addition drill for Tutorial #4: Unit beads 1 to 4. (1/10/2011) Addition of two numbers Soroban Drill #4S-2 Subtraction drill for Tutorial #4: Unit beads 1 to 4. (1/10/2011) Subtraction of two numbers Soroban Drill #4M-4 Mixed drill for Tutorial #4: Unit beads 1 to 4. (1/11/2011) Addition and subtraction of four numbers totalling 4 Soroban Drill #5A-2 Addition drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Addition of two numbers without jumping the bar Soroban Drill #5AJ-2 Addition drill for Tutorial #5: Using the Five Bead with jumps. (9/19/2010) Addition of two numbers requiring jumping the bar Soroban Drill #5S-2 Subtraction drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Subtraction of two numbers without jumping the bar Soroban Drill #5SJ-2 Mixed drill for Tutorial #5: Using the Five Bead. (10/02/2010) Subtraction of two numbers requiring jumping the bar Soroban Drill #5M-2 Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011) Addition or subtraction of two numbers involving the five-bead Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Addition drill for Tutorial #4: Unit beads 1 to 4. (1/10/2011); Addition of two numbers
Soroban Drill #4S-2 Subtraction drill for Tutorial #4: Unit beads 1 to 4. (1/10/2011) Subtraction of two numbers Soroban Drill #4M-4 Mixed drill for Tutorial #4: Unit beads 1 to 4. (1/11/2011) Addition and subtraction of four numbers totalling 4 Soroban Drill #5A-2 Addition drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Addition of two numbers without jumping the bar Soroban Drill #5AJ-2 Addition drill for Tutorial #5: Using the Five Bead with jumps. (9/19/2010) Addition of two numbers requiring jumping the bar Soroban Drill #5S-2 Subtraction drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Subtraction of two numbers without jumping the bar Soroban Drill #5SJ-2 Mixed drill for Tutorial #5: Using the Five Bead. (10/02/2010) Subtraction of two numbers requiring jumping the bar Soroban Drill #5M-2 Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011) Addition or subtraction of two numbers involving the five-bead Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Subtraction drill for Tutorial #4: Unit beads 1 to 4. (1/10/2011); Subtraction of two numbers
Soroban Drill #4M-4 Mixed drill for Tutorial #4: Unit beads 1 to 4. (1/11/2011) Addition and subtraction of four numbers totalling 4 Soroban Drill #5A-2 Addition drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Addition of two numbers without jumping the bar Soroban Drill #5AJ-2 Addition drill for Tutorial #5: Using the Five Bead with jumps. (9/19/2010) Addition of two numbers requiring jumping the bar Soroban Drill #5S-2 Subtraction drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Subtraction of two numbers without jumping the bar Soroban Drill #5SJ-2 Mixed drill for Tutorial #5: Using the Five Bead. (10/02/2010) Subtraction of two numbers requiring jumping the bar Soroban Drill #5M-2 Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011) Addition or subtraction of two numbers involving the five-bead Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Mixed drill for Tutorial #4: Unit beads 1 to 4. (1/11/2011); Addition and subtraction of four numbers totalling 4
Soroban Drill #5A-2 Addition drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Addition of two numbers without jumping the bar Soroban Drill #5AJ-2 Addition drill for Tutorial #5: Using the Five Bead with jumps. (9/19/2010) Addition of two numbers requiring jumping the bar Soroban Drill #5S-2 Subtraction drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Subtraction of two numbers without jumping the bar Soroban Drill #5SJ-2 Mixed drill for Tutorial #5: Using the Five Bead. (10/02/2010) Subtraction of two numbers requiring jumping the bar Soroban Drill #5M-2 Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011) Addition or subtraction of two numbers involving the five-bead Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Addition drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011); Addition of two numbers without jumping the bar
Soroban Drill #5AJ-2 Addition drill for Tutorial #5: Using the Five Bead with jumps. (9/19/2010) Addition of two numbers requiring jumping the bar Soroban Drill #5S-2 Subtraction drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Subtraction of two numbers without jumping the bar Soroban Drill #5SJ-2 Mixed drill for Tutorial #5: Using the Five Bead. (10/02/2010) Subtraction of two numbers requiring jumping the bar Soroban Drill #5M-2 Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011) Addition or subtraction of two numbers involving the five-bead Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Addition drill for Tutorial #5: Using the Five Bead with jumps. (9/19/2010); Addition of two numbers requiring jumping the bar
Soroban Drill #5S-2 Subtraction drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011) Subtraction of two numbers without jumping the bar Soroban Drill #5SJ-2 Mixed drill for Tutorial #5: Using the Five Bead. (10/02/2010) Subtraction of two numbers requiring jumping the bar Soroban Drill #5M-2 Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011) Addition or subtraction of two numbers involving the five-bead Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Subtraction drill for Tutorial #5: Using the Five Bead without jumps. (1/19/2011); Subtraction of two numbers without jumping the bar
Soroban Drill #5SJ-2 Mixed drill for Tutorial #5: Using the Five Bead. (10/02/2010) Subtraction of two numbers requiring jumping the bar Soroban Drill #5M-2 Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011) Addition or subtraction of two numbers involving the five-bead Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Mixed drill for Tutorial #5: Using the Five Bead. (10/02/2010); Subtraction of two numbers requiring jumping the bar
Soroban Drill #5M-2 Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011) Addition or subtraction of two numbers involving the five-bead Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Mixed drill for Tutorial #5: Unit-beads and five-bead. (1/11/2011); Addition or subtraction of two numbers involving the five-bead
Soroban Drill #5M-4 Mixed drill for Tutorial #5: Unit-beads and five-bead. Addition and subtraction of four numbers involving the five-bead Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Mixed drill for Tutorial #5: Unit-beads and five-bead.; Addition and subtraction of four numbers involving the five-bead
Soroban Drill #6A-2 Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Addition of two numbers involving a ten-bead Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Addition drill for Tutorial #6: Using the Ten Bead. (10/02/2010); Addition of two numbers involving a ten-bead
Soroban Drill #6S-2 Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010) Subtraction of two numbers involving a ten-bead Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: Subtraction drill for Tutorial #6: Using the Ten Bead. (10/02/2010); Subtraction of two numbers involving a ten-bead
Soroban Drill #D1 (6M-2) All 20 double jump moves. (11/26/2010) Addition or subtraction of two numbers with bar and rod jumps Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: All 20 double jump moves. (11/26/2010); Addition or subtraction of two numbers with bar and rod jumps
Soroban Drill #D2 (6M-4) All 30 double jump pairs. (11/30/2010) Addition or subtraction of four numbers with bar and rod jumps: All 30 double jump pairs. (11/30/2010); Addition or subtraction of four numbers with bar and rod jumps

Revised 15 February, 2011 by Ralph Abraham