# Can u help in 3 digits bridge multiplication?

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• #5098

I am still not able to understand the method

#5100

Hi Preethi,

Let us try to multiply

123 x 456

The multiplications you have to do are the following:

Step A) (1 x 4) = 4

4 _ _ _ _

Step B) (1 x 5) + (2 x 4) = 13

5 3 _ _ _

Step C) (1 x 6) + (2 x 5) + (3 x 4) = 28

5 5 8 _ _

Step D) (2 x 6) + (3 x 5) = 27

5 6 0 7 _

Step E) (3 x 6) = 18

5 6 0 8 8

Each step you visualize only the numbers to bridge. I have highlighted the numbers to visualize in each step below

Step A) <u>1</u>23 x <u>4</u>56

Step B) <u>12</u>3 x <u>45</u>6

Step C) <u>123</u> x <u>456</u>

Step D) 1<u>23</u> x 4<u>56</u>

Step E) 12<u>3</u> x 45<u>6</u>

So the numbers which are not highlighted you can drop in each step.

I think the method is best illustrated in the video lesson. You can look at the Vitruvian man method as an alternative form of visualization.

Let me know if this clarifies. If it doesn’t please let me know which step is confusing.

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