Type a number or click beads — they stay in sync. Up to 9 whole digits and 8 decimal places.
Work each step on your own abacus, then enter the running total. The screen abacus reveals the correct beads after each answer.
Type a number or click beads — they stay in sync. Up to 9 whole digits and 8 decimal places.
Work each step on your own abacus, then enter the running total. The screen abacus reveals the correct beads after each answer.