Color:

Black-brown Beaded Abacus

(white beads abacus)

Abacus 13 (wood brown)

13-gear wooden abacus (with units)

Black Brown Beads Abacus Storage Bag Formula Table

White beads abacus storage bag formula table

13-file abacus (wood brown) storage bag formula table

Suitable for Grade 2 or above -7 Beads 11

Deli ABS plastic abacus -7 beads 13th gear

Suitable for kindergarten -5 beads 11 stalls

[Counter with Clock Cognition | 5th Gear 10 Beads] Orange Addition Formula Table

[Counter with Clock Cognition | 12 Gear 10 Beads] Blue Addition Formula Table