Trick 259 - Mentally Multiply by 1.5 and 2.5

Описание к видео Trick 259 - Mentally Multiply by 1.5 and 2.5

How you look at numbers decides the kind of method you will use to carry out the calculation. Being good in mental addition helps you multiply numbers, even if they are in decimals. Watch this interesting video to multiply numbers by 1.5 and 2.5....for more videos, keep visiting:
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