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Quick Subtraction

Maths Class I-II 15 seconds ChemCheemi voice
9-8 20-14 15-4 30-15 20-2 17-10 15-3
3-1 10-1 5-2 15-5 19-3 13-0 19-2
10-6 7-2 20-12 20-6 20-1 30-10
Within 15 SecondsMax. Scores: 30 Quick SubtractionBest for: Class I-II “Education is the only conflict-free inheritance”By Kelvin Paul - Founder of ChemCheemi
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Keyboard: 1 2 3 or R B Y