Presentation on theme: "Multiplication from the Ages Mrs. Fox Multiplication has been dated back to 2300 BC in many places around the globe from Mesopotamia to Europe, Asia."— Presentation transcript:
Multiplication from the Ages Mrs. Fox
Multiplication has been dated back to 2300 BC in many places around the globe from Mesopotamia to Europe, Asia and the United States Different methods of multiplication have been used through the centuries Some are common to us and some are bizarre Some have interesting trivia to go with them Lets take a look !
Akkadians and Sumerians Invented the Abacus add subtract divide 2300 BC Mesopotami a multiply
Old Babylonian Period 2000 BC Archeologist unearthed stone tablets much like our current multiplication tables
Gomutrika 11 th CenturyIndian Translation – trajectory of a cows urine ????? X X X 452 +
Rome Multiplication with fingers Not really multiplication
Ancient Egyptian Multiplication Add the yes doubles X Double this digit Halve this digit Odd?YesYesYesyes
Jalousia European Leonardo of Pisa L a tt ic e Gelosia Italian men would place this grid over their windows to keep strangers from staring at their wives Iron Grid X 15 = 480
Spanish 1500s 875x978= /978 8x9 8x7 8x7 8x8 7x9 7x7 7x8 5x9 5x7 5x Can you figure this one out?
Napiers Bones 1600s England Scottsman with way too much time on his hands makes one of the first know calculators from animal bones
Russian Peasant Multiplication 9 X Double this numeralHalve this numeral When the right side = 1 The left side is the answer 72
Traditional 20 th century 23 X Multiply 23 X 3 Multiply 23 X 40 Add the two products
Calculator Todays modern miracle Push buttons
Pa Math Standards E – Apply factors and multiples to represent larger numbers in various ways 2.2 – Computation and Estimation M4.A.2 – Understanding the meaning of operations, use operations and understand how they relate to each other