Count from 0 to 20 and combine them for any larger number.
ISL sign
How to sign
Closed fist represents zero.
Index finger extended upward.
Index and middle finger extended together.
Thumb, index and middle finger extended.
Four fingers extended, thumb folded.
All five fingers spread open.
Thumb and pinky out, others folded.
Thumb meets index in a circle, others raised.
Thumb meets middle finger, others raised.
Open hand waves, thumb tucked in.
Both index fingers tap together twice.
Combine the digits of 11 in sequence — show 1 then 1.
Combine the digits of 12 in sequence — show 1 then 2.
Combine the digits of 13 in sequence — show 1 then 3.
Combine the digits of 14 in sequence — show 1 then 4.
Combine the digits of 15 in sequence — show 1 then 5.
Combine the digits of 16 in sequence — show 1 then 6.
Combine the digits of 17 in sequence — show 1 then 7.
Combine the digits of 18 in sequence — show 1 then 8.
Combine the digits of 19 in sequence — show 1 then 9.
Combine the digits of 20 in sequence — show 2 then 0.