WONDER #1387: How Do You Use an Abacus?
Question 1 of 3
A counting frame is also known as a what?
- sand board
- bamboo board
Question 2 of 3
A person who uses an abacus is known as a what?
Question 3 of 3
Which of the following abaci may have been the first abacus ever invented?
Check your answers online at https://wonderopolis.org/wonder/How-Do-You-Use-an-Abacus.