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How can i do the 2 digit like 36×30 like in the video by LR? can you help me understand it
Hi Quyen,
The easiest way to do this is to factor 30 as 3 x 10. You just multiply 36 x 3 using LR method and then multiply by 10 (which is just adding an extra 0 to your final answer).
So 36 x 3 = 108.
Multiplying by 10 you get 1080.
If you watch the LR multiplication video, there are other LR variations taught as well. But for numbers which are factors of 10 (30, 40, 300), it is easier to use the LR multiplication by factoring the numbers.
Let me know if this clarifies.
Abhishek
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