Vedic / Quicker / Shortcut Math ⇒ Topic : Multiply any number from 1019 by 5

Lalan
 
Whenever you want to multiply any 2 digit number by 5, this trick is simply amazing to use.We shall learn this trick using an example. Suppose we want to multiply 16 by 5 Step 1:Assume the closest round number as base In our example,we can assume 10 as base. Step 2:Multiply the base by 5. We get 10 x 5 = 50 Step 3:Now multiply unit place digit by 5 We get 6 x 5 = 30 Step 4:Add result obtained in step 2 and step 3 We get 50 + 30 = 80 Ans 16 x 5 = 80 Lets see another example Example 2:17 x 5=? Step 1:Assuming 10 as base Step 2:Multiplying the base by 5 We get 10 x 5 = 50 Step 3:Multiplying the unit place digit by 5 We get 7 x 5 = 35 Step 4:Adding step 2 and step 3 We get 50 + 35 = 85 Ans 17 x 5 = 85  
 
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