2 Multiplication has been dated back to 2300 BC in many places around the globe from Mesopotamia to Europe, Asia and the United StatesDifferent methods of multiplication have been used through the centuriesSome are common to us and some are bizarreSome have interesting trivia to go with themLet’s take a look !
3 Akkadians and Sumerians Invented theAbacus2300 BCMesopotamiaaddsubtractmultiplydivide
4 Old Babylonian Period2000 BCArcheologist unearthed stone tablets much like our current multiplication tables
5 Translation – trajectory of a cow’s urine ????? GomutrikaTranslation – trajectory of a cow’s urine ?????11th CenturyIndian4 5 23 X 4521 X 4525 X 4524 5 2+
6 Multiplication with fingers Not really multiplication RomeMultiplication with fingersNot really multiplication
7 Ancient Egyptian Multiplication 14 X 23Double this digit142856112224Halve this digit2311521Odd?YesyesAdd the “yes” doubles142856+224322
8 European Leonardo of Pisa LatticeJalousiaIron GridEuropean Leonardo of PisaGelosiaItalian men would place this grid over their windows to keep strangers from staring at their wives32 X 15 = 480153211458
9 Can you figure this one out? Spanish1500’s875x978=855750875/9788x97264608x756958x86354457x9437x78557507x85x9Can you figure this one out?5x75x8
10 Napier’s BonesEngland1600’sScottsman with way too much time on his hands makes one of the first know calculators from animal bones
11 Russian Peasant Multiplication The left side is the answer 9 X 8Double this numeralHalve this numeral91836728421When the right side = 1The left side is the answer72
12 Traditional 23 X 43 20th century 69 92 989 + Multiply 23 X 3 Add the two products989
13 Today’s modern miracle CalculatorToday’s modern miraclePush buttons
15 Pa Math Standards2.1.4.E – Apply factors and multiples to represent larger numbers in various ways2.2 – Computation and EstimationM4.A.2 – Understanding the meaning of operations, use operations and understand how they relate to each other
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