Multiplication of a Number Ending in 5 by an Even Number

To multiply a number ending in 5 by an even number, double the number that ends in 5 and reduce the even number to half. Then, multiply the resultant numbers.

For example:  Let’s take 25 × 18  Double 25. We get 50.  Reduce 18 to half. We get 9.  Now, multiply 50 by 9. We get 450. So, 25 × 18 = 450 Try these at home: 115 X 16 = _____ 35 X 24 = _____ 65 X 12 = _____ Bookmark(0) Click Category to Bookmark
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