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This is how you sign 400in American Sign Language.
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How to sign
How to sign
To sign "400" in American Sign Language (ASL), start with an open palm facing forward. Curl the thumb in to form a "4" shape, then pull the hand back while bending the four fingers.
To sign "400" in American Sign Language (ASL), begin with your palm open and facing outward. Curl your thumb inward to create a "4" shape, then draw your hand back while folding the four fingers down.
Word definition
Number: Four hundred (the number after 399 and before 401).