multiplying techniques

multiplication techniques

multiplying 2-digit number easily  

34*74=2516

solution:

1. check weather the ones places of both the numbers are same (4,4) and multiply the numbers(4*4=16)
2. then the tens place of both the numbers are equal to ten (7+3=10) 
3. then multiply the tens place and add common digit of ones place((3*7)+4=25)
4. join two numbers together i.e 2516