Shortcut For 2 Digit Multiplication
Multiplying Shortcut |
So instead of regular 2 steps, we can achieve in a single step. For understanding how it works we need to get basics right.
What we do in multiplication,
(a + b) x (c+d) = bd + ad + bc + ac.
Here,
(80 + 6) x (70 + 8) = 6708.
This is based on mathematical expression,
(a + b)(c + d) = ac + ad + bc + bd.
Here it is in form of,
(10a + b)(10c + d)