조회수
0:55
Indian Abacus competition
4:20
Impossible Challenge: Teenagers mentally calculate 100 3-digit numbers in seconds
0:26
Finger Abacus is a mental calculation method that uses fingers to mimic an Abacus for counting
0:45
learning to count on an abacus👍👍👍 #kid #abacus #study #funny
0:09
Neuroakrobatyka z K2Kids 🙌 #mentalarithmetic #soroban #arytmetykamentalna
0:23
ABACUS Level 2 | Addition & Subtraction Video | Saksham Abacus Academy #maths #school #kids #shorts
15:41
Abacus Rules for Beginners
0:17
Tính toán nhanh cùng bé #soroban #fingermath #abacus
