Identity property of 1 | Arithmetic properties | Pre-Algebra | Khan Academy

Identity Property of 1

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[tylerbakeman]

“All this is saying is 5, 1 time”, , , but it doesn’t explain why 0 is the additive identity, and addition would ~seem like it should be a base-line for this simple language.
If that makes sense… probably not, but, the idea is in there somewhere.

[evuga]

how is there only 2 comments with this many views

[professionalcryer]

Soo this is the multiplicative identity property and the other video is additive

[blueyedemt]

Anyone else here from ep allinonehomeschool?

[stevedl]

It seems to me a ridiculous idea to substitute what looks like a decimal point for x as the command to multiply. Suppose I sat a maths exam and substituted what looks like a decimal point for x as the command to multiply.
This, in my view, is fashion gone mad.