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realistically all this or any other process is doing is expansion and taking advantage of the commutative nature of multiplication.

(70 + 9)x(80 + 6)

70x80 + 9x80 + 6x70 + 6x9

56(00) + 72(0) + 42(0) + 54

Guess what - long story short you need to know your times tables. I don't see how the lines method is any easier than long multiplication, which in itself is not hard with a little time and explanation. If you can use the lines, or any other method, as a way of conveying what I did above - then you've succeeded.

Edit: Stars go to italics and I don't know the escape character




* It's not backslash!

I think you can only do * with an unpaired * terminator * ?

I think you can only do * with an unpaired * terminator ?

I think you can only do xx with an unpaired xx terminator xx ?

[that line is this with no spaces around :I think you can only do x * x with an unpaired x * x terminator x * x ?

Nope, looks like as long as it's spaced from the prior/next character then it doesn't cause italicisation.

Help says: "Text surrounded by asterisks is italicized, if the character after the first asterisk isn't whitespace."

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> I don't see how the lines method is any easier than long multiplication

You probably learned multiplication using something similar to the lines method. If you had 3 x 4, you'd draw out 3 circles and then put 4 more circles inside and count up all the small ones. This is just a logical extension of that.

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