Abacus Mental Math Ep.7 - 10's rules : -9,-8,-7,-6
Abacus Mental Math Ep.8 - Finger Abacus &10's rules : -5,-4,-3,-2,-1
Abacus Mental Math Ep.9 - 5's rules : +4,+3,+2,+1
Episode 7 - Abacus Subtraction
Abacus Mental Math Ep.12 - Combo rules : -9,-8,-7,-6
Abacus Mental Math Demonstration - Strengthen Math Facts, Improve Focus, Concentration & Memory
Abacus Mental Math Ep.11 - Combo rules : +9,+8,+7,+6
Abacus Mental Math Ep.5 - 10's rules : +9,+8,+7,+6 (中文 sub)
Abacus Mental Math Ep.6 - 10's rules : +5,+4,+3,+2,+1 (中文 sub)
Abacus Mental Math Ep.4 - Adding and subtracting numbers on the Abacus without rules (中文 sub)
Japanese Method #shorts #fyp
Abacus Mental Math Ep.10 - 5's rules : -4,-3,-2,-1
Abacus Mental Math Ep.3 - How to clear your abacus beads to a "0" position ? (中文 sub)
World champion in mental calculation 🏆
Addition on the Abacus by using all 14 techniques Ep. No. 19 #abacuseducation
Abacus Mental Math Ep.13 - Review Common Rules
Silent Abacus Tutorial short 20 count 90 - 100 On the Abacus
Impossible Challenge: Teenagers mentally calculate 100 3-digit numbers in seconds
Abacus English shorts 29/ Add and subtract/ Technique No. 7/ #education
#Multiplication on the #Abacus Basic tech.no. 7 short video watch full episode to learn in
