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[quote=Anonymous]My kids like talking about money.

If you have a negative number, it is like borrowing money.   (So -3 means I borrowed 3 dollars)

Multiplying a negative number by a positive number is like taking several loans  (so -3*3 is like borrowing 3 dollars from each of 3 friends (or three times from the same friend), so you owe $9 overall).

Multiplying a negative number by a negative number is like someone paying you back for money they borrowed.  (-3*-2 is like two friends, who borrowed $3 each, paying you back so you have $6 )

Positive number times positive is making money for working(So 3*2 is like getting paid 3 dollars each for 2 job, of $6).  (so getting paid to work and money paid back both put positive money in your pocket)

Positive number times negative is similar to you (as the employer) owing someone for their work (so 3*-3 is like you hiring 3 friends at $3 each, so you owe $9 total).  So borrowing money from friends, and owing them for work they both mean that you owe money.

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