SECTION 1.3MULTIPLYING TWO DIGITNUMBERS
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TRADITIONAL METHOD:
The traditional method for multiplying:
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REVIEW:
The product of two numbers can be represented by thearea of a rectangle
Each number is either the length or width of therectangle
The bigger numbercan be the length andthe smaller is the width
The number of unitsquares is the areaof the area
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MULTIPLYING TWO DIGIT INTEGERS WITH AREA MODEL:
Split each number as the sum of a multiple of 10 with asingle digit
ie: 23 = 20 + 3 , 46 = 40 + 6 , 117 = 110 + 7
Split the rectangleinto four parts sothat the area of eachone is easier to count
The product willbe the sum of thearea of all fourrectangles
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PRACTICE: FIND THE AREA OF EACH PRODUCT USING THEAREA MODEL
Split each number as the sumof two digits
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GARBAGE MANAGEMENT:
An average Canadian creates 2200g of garbage each day.If the population of Canada is 34,000,000 how manypound of garbage will there be in a day? week?
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HOMEWORK:
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