Place Value

1) Represent the Given Numbers by Drawing the Correct Number of Beads on the Abacus.

The correct answer is:

2) Do the Addition by Using an Abacus.

The correct answer is:

First, represent the number 22 on an abacus. Then add the number 36. Count the total number of beads. So we get,
22 + 36 = 58
First, represent the number 54 on an abacus. Then add the number 11. Count the total number of beads. So we get,
54 + 11 = 65
We have to subtract 36 from 87. Remove 3 beads from 8 and 6 beads from 7 beads. Then count the remaining beads. So we get,
87 – 36 = 51