Abacus Practice Worksheet

Abacus Practice Worksheet

Read each question carefully and use your knowledge of the abacus to answer. An abacus helps us understand place value and do calculations.

An abacus is a tool used for counting and calculating. Each rod represents a place value (ones, tens, hundreds, etc.), and each bead has a value.

The beads below the bar are worth 1 each. The beads above the bar are worth 5 each.

1. If you push 3 beads up on the ones rod, the number shown is  .

2. To show the number 15 on the abacus, you would push down one '5-value' bead and   '1-value' beads on the ones rod.

3. If an abacus shows 2 beads up on the tens rod and 4 beads up on the ones rod, the number is  .

4. Draw an abacus showing the number 23. (You can draw circles for beads and lines for rods).

5. A teacher shows a number on an abacus with one '5-value' bead and two '1-value' beads on the ones rod, and two '1-value' beads on the tens rod. What number is being shown?

6. On an abacus, moving one bead on the tens rod is the same as moving ten beads on the ones rod.

7. The top bead on each rod of an abacus usually represents a value of 1.

8. What number is represented by 1 bead on the tens rod and 7 beads on the ones rod of an abacus?