Identify property shown by the equations

The commutative property could informally be called the "order doesn't matter" property. It's the property that tells us that adding two things to three things is the same as adding three things to two things (2 + 3 = 3 + 2) or that five groups of four is the same as four groups of five (5 x 4 = 4 x 5). Multiplication and addition both have this property, but subtraction and division do not. (4 - 3 ≠ 3 -4, 4 ÷ 2 ≠ 2 ÷ 4)

The associative property is the "grouping doesn't matter" property. It tells us that it doesn't matter if we do "one-and-two and then three" or "one and then two-and-three," we'll get the same result either way. It doesn't matter if we add 2 + 3 and then add 5, or if we add 3 + 5 and then add that to 2, we'll still end up with 10 in the end. Symbolically, we'd say that (2 + 3) + 5 = 2 + (3 + 5).

Finally, the identity property is the "mirror" property. Addition and multiplication both have a special number called an "identity element" - for addition it's 0, and for multiplication it's 1 - that acts like a kind of mirror for other numbers. If 15 asked itself "what number am I?" it could add 0 to itself to find out: 15 + 0 = 15 ("Oh, right, I'm 15!") It could also multiply itself by 1: 15 x 1 = 15 ("Yup, still 15!"). A little more formally, the identity property is the property that combining a number with the identity element under some operation like addition or multiplication leaves the number unchanged.

the clues that signal the reader should change tone are the punctuation marks, the grammatical signs. for example, the quotation marks at the beginning of something someone else said literally or the exclamation marks.

the tone of the first line of dialogue until "gettysburg" is a kind tone, a tone of advise. the narrator is trying to the other person in doing something he or she obviously is finding hard to do by giving a piece of advise and bringing up a memory of a successful similar case.

the clue that the reader understand how to read the word "bang" is the exclamation mark. it gives the word a surprise tone, a strong accent.

the best tone for reading the word "bang" is an exciting tone, a surprise one, even a loud one.

the words that should be read with a formal tone are the ones that give factual information. the sentence: mister lincoln couldn't think of anything to say at the gettysburg" gives information about an event and it needs to be read formally, also, when the narrator wants to transmit calmness, a formal and slow tone is needed, because people also transmit messages with the vibrations of our voices and tones.

step-by-step explanation:

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