Multiplying by a near multiple of 10
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Multiplying by a near multiple of 10
04.30.2020
11:54:59
Our topic for today is multiplying by a near multiple of 10
Example: 23x19
The product of 23x19 is 2less than the product of 23x21
You can multiply by 19 or 21 by multiplying by 20 and adjusting
23x19 is one group of 23 less than 23x20
23x21 is one group of 23 more than 23x20
Calculate the following on page 150 question#1in learners book
11:54:59
Our topic for today is multiplying by a near multiple of 10
Example: 23x19
The product of 23x19 is 2less than the product of 23x21
You can multiply by 19 or 21 by multiplying by 20 and adjusting
23x19 is one group of 23 less than 23x20
23x21 is one group of 23 more than 23x20
Calculate the following on page 150 question#1in learners book
leea- المساهمات : 744
تاريخ التسجيل : 15/09/2018
مواضيع مماثلة
» Multiplying by 10
» Multiplying by 25
» Multiplying larger numbers
» Multiplying/ dividing by 10 and 100
» Multiplying decimals
» Multiplying by 25
» Multiplying larger numbers
» Multiplying/ dividing by 10 and 100
» Multiplying decimals
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