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Suresh Aggarwal. Смотреть видео: Only 1 People Know This Percentage Trick, Squaring Trick II Square Mentally II Numbers In 50s 500s II Fast Calculation Short Trick For Quant, Squaring 11 To 999 In 5 Seconds II Never Before Trick II No Pen Paper Required II Fastest Trick, 6 Short Tricks II Multiply Numbers Mentally 10x Faster II Multiplication Tricks II Vedic Maths Trick.