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Fingering Practice (+1, +2, +3) Addition (1+1)
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When all the sliders are not in position, use index finger and thumb together of right hand on both sides of the bar and sweep right to left.

Indian Abacus

Addition (1+1)

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Set one lower slider as +1 in all the columns by using right hand thumb, Add 1 again in all the columns by using the same finger.
 
NO 1 2 3 4 5 6 7 8 9 10 11 12 13
1 1 1 1 1 1 1 1 1 1 1 1 1 1
2 1 1 1 1 1 1 1 1 1 1 1 1 1
ANS.
 
Addition (2+1)
Close X Indian Abacus

Long Clearance:

Indian Abacus
When all the sliders are not in position, use index finger and thumb together of right hand on both sides of the bar and sweep right to left.

Indian Abacus

Addition (2+1)

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Set two lower sliders as +2 in all the columns by using right hand thumb, Add 1 again in all the columns by using the same finger.
NO 14 15 16 17 18 19 20 21 22 23 24 25 26
1 2 2 2 2 2 2 2 2 2 2 2 2 2
2 1 1 1 1 1 1 1 1 1 1 1 1 1
ANS.
 
Addition (3+1)
Close X Indian Abacus

Long Clearance:

Indian Abacus
When all the sliders are not in position, use index finger and thumb together of right hand on both sides of the bar and sweep right to left.

Indian Abacus

Addition (3+1)

Close X
Indian Abacus
Indian Abacus
Play

Set three lower sliders as +3 in all the columns by using right hand thumb, Add 1 again in all the columns by using the same finger.
NO 27 28 29 30 31 32 33 34 35 36 37 38 39
1 3 3 3 3 3 3 3 3 3 3 3 3 3
2 1 1 1 1 1 1 1 1 1 1 1 1 1
ANS.
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