Page 16 Advertisements Column 2

Press, Volume CII, Issue 30126, 9 May 1963, Page 16

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Can you multiply 5132437201 timas 452736502785 in seventy seconds? One young boy did by using The Trachtenberg Speed System of Basic Mathematics This fretn Hm comrMti«n«l LL Tr«chttiib«rg I methods with which ws have long been familiar. To add long column* of number* we need not count higher then eleven. ■ Is fact, one needs only to B •‘"ZrUT I be able to count to sieves B I to- enter to matter Hie IT - entire Trocbtssberg sys- Li __ .. | **• lr ’ —* Thh technique of odog hoy mmbon bes been thoroughly Ty*? T* T- "H-rtb-te of umbomoNw.” shortening tbe time far mathematical competeHoes by M per cost, and aware* a per cent, accuracy. A BEST-SELLER OVER IM,MB COPIES SOLD AND STILL MUNTIN*. PHra 21/ . Get your copy ww from Coairtw 6. CHRISTCHURCH