How would you like to easily be able to multiply two numbers up to 20 together and quickly get the answer. With this method you can do it in seconds. Here is how to do it:
Let's say you want to multiply 12 X 13
1) take the first number (12) and add the second digit of the second number (3)...12 + 3 = 15
2) add a zero to the result...15(0)= 150
3) multiply the second digits 2 X 3 = 6
4) add the result of step 2 and 3...150 + 6 = 156
Here's another one to try:
14 X 15 = (14 + 5 = 19...190) + (4 X 5 = 20) = 210
and another one (combining the steps):
16 X 13 = 190 + 18 = 208
one last one:
18 X 14 = 220 + 32 + 252
Hopefully you found this beneficial. I'll be adding more tips and tricks so check back in when you find the time.
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