Interactive Grid Multiplicationx = 4977
This is an easy-to-understand method for multiplying 2-digit numbers together. Break each number down into its tens and units elements, so "63" becomes "60" and "3". Write one number across the top, and the other down the side, then multiply each of the numbers together.
Using this method, you still have to do multiplication, but they are all easy single-digit multiplications, up to 9x9.
When multiplying 70 x 3 take off the zero, do 7 x 3 = 21, then put the zero back on the end to come up with 210.
Similarly multiplying 60 x 70, take off both zeroes, do 6 x 7 = 42, then put both zeroes back on the end to get 4200.
Finally, add up the four numbers you have worked out, to get the answer.
Type in different numbers into the boxes at the top of the page to see how the calculations are carried out.
When using pencil and paper, you can extend the size of the grid to whatever size you want and use it to multiply larger numbers together.