Page 67 Advertisements Column 1

Otago Witness, Issue 2390, 21 December 1899, Page 67

Multiplying 14 by 13. sent 7, the middle fingers 8, the ring fingers 9, and the little fingers 10. " In order to multiply any two of these numbers, the figures representing the nniland the multiplicand and placed together. Now, beginning -with the fingers placed together, one counts the number of firgers including these two, and moving toward and including the thumb. The sum will be the number of tens, or the first numeral of the product. A certain number of fingers still remain below the fingers which have been joined. The fingers remaining on one hand multiplied by the number remaining on the other will give the number of units, or right hand unit of the product. In multiplying 8 by 9, for instance, the middle finger of the 'right hand' is placed against the ring finger ot the left hand, as shown in the illustration. Counting the number of fingers above those placed together, and including these, we obtain seven fingers, or 70. There are now remaining two fingers- on the right hand and one on th: left, which when multiplied give two. These two, added to the number of tens give 72, the product of 8 by 9. Other combinations will suggest themselves on the experimenter studying the diagram.