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## HOW TO SET NUMBERS ON ABACUS

Abacus Math >> How To Use Abacus >> Counting On10s >>

## How to Use Abacus

The first and foremost step is to clear the Abacus and set it to zero position. When no beads touch the middle rod your Abacus is set to zero and ready for operations.

The operations on the double digits are done on 1’s and 10’s rod. 10s rod is left to 1's rod. We shall understand the concept by moving the numbers hereby.

#### Set '10'

Operation method: Move '1'lower bead on ten's rod towards the bar, by using thumb finger as shown in the figure. Note for moving 10's rod lower bead, thumb finger is used.

#### Set '20'

Operation method: Move '2'lower bead on ten's rod towards the bar, by using thumb finger as shown in the figure. Note for moving 10's rod lower bead, thumb finger is used.

#### Set '30'

Operation method: Move '3'lower bead on ten's rod towards the bar, by using thumb finger as shown in the figure. Note for moving 10's rod lower bead, thumb finger is used.

#### Set '40'

Operation method: Move '1'lower bead on ten's rod towards the bar, by using thumb finger as shown in the figure. Note for moving 10's rod lower bead, thumb finger is used.

#### Set '50'

Operation method: Move '1'upper bead on ten's rod towards the bar, by using thumb finger as shown in the figure. Note for moving 10's rod lower bead, thumb finger is used.