Question: The mathematical fact that 7+8 = 8+7 is known as what?

Answer: The commutative law is a basic property used in mathematics. It states that the order in which you add or multiply two real numbers does not affect the result. Stated symbolically when we add: a + b = b + a and when we multiply: a × b = b × a. From these laws it follows that any finite sum or product is unaltered by reordering its terms or factors. The word commutative is a combination of the French word commuter meaning “to substitute or switch” and the suffix -ative meaning “tending to” so the word literally means “tending to substitute or switch.”

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1The mathematical fact that 7+8 = 8+7 is known as Commutative law
The word commutative is a combination of the French word commuter meaning “to substitute or switch” and the suffix -ative meaning “tending to” so the word literally means “tending to substitute or switch.” Step 2 : Answer to the question “The mathematical fact that 7+8 = 8+7 is known as what?” Commutative law:
https://www.try3steps.com/2020/09/answer-mathematical-fact-that-78-87-is.html

2The mathematical fact that 7+8 = 8+7 is known as Commutative law
The mathematical fact that 7+8 = 8+7 is known as what? Answer: Commutative law. The commutative law is a basic property used in mathematics. It states that the order in which you add or multiply two real numbers does not affect the result. Stated symbolically when we add: …
https://www.trivia.net/the-mathematical-fact-that-7-8-8-7-is-known-as-what

3Commutative Property

Distributive Law. The “Distributive Law” is the BEST one of all, but needs careful attention. This is what it lets us do: 3 lots of (2+4) is the same as 3 lots of 2 plus 3 lots of 4. So, the 3× can be “distributed” across the 2+4, into 3×2 and 3×4. And we write it like this:
https://www.mathsisfun.com/associative-commutative-distributive.html

4The mathematical fact that 7+8 = 8+7 is known as Commutative law
3rd Grade Math Lesson 44: Using the Commutative Property to Find Known Facts of 6, 7, 8, and 9 Homework
https://www.teachertube.com/videos/lesson-44-using-the-commutative-property-to-find-known-facts-of-6-7-8-and-9-467211

5Addition

Addition (usually signified by the plus symbol +) is one of the four basic operations of arithmetic, the other three being subtraction, multiplication and division.The addition of two whole numbers results in the total amount or sum of those values combined. The example in the adjacent picture shows a combination of three apples and two apples, making a total of five apples.
https://en.m.wikipedia.org/wiki/Addition

6The mathematical fact that 7+8 = 8+7 is known as Commutative law
When an amount grows at a fixed percent per unit time, the growth is exponential. To find (A_0) we use the fact that (A_0) is the amount at time zero, so (A_0=10). To find (k), use the fact that after one hour ((t=1)) the population doubles from (10) to (20).The formula is derived as follows
https://math.libretexts.org/Bookshelves/Precalculus/Book%3A_Precalculus_(OpenStax)/04%3A_Exponential_and_Logarithmic_Functions/4.08%3A_Exponential_and_Logarithmic_Models

7The mathematical fact that 7+8 = 8+7 is known as Commutative law
Confident doublers will appreciate that multiplying by eight can be done by doubling, doubling and doubling again. If children know that multiplication is commutative, they can turn around most of the seven and eight times table facts – 7 x 5 becomes 5 x 7. Only three facts are then not covered in the other tables – 7 x 7, 8 x 8, and 7 x 8.
https://www.teachprimary.com/learning_resources/view/ks1-ks2-maths-multiplication-facts

8The mathematical fact that 7+8 = 8+7 is known as Commutative law
Commutative Property of Addition. If we add two whole numbers with different orders, then the sum will remain same. A + B = B + A Let us see some examples. Example 1. Check if 7 + 8 = 8 + 7. Solution. 7 + 8 = 15 and 8 + 7 = 15 Thus, 7 + 8 is equal to 8 + 7. Example 2. Check if 12 + 13 = 13 + 12. Solution. 12 + 13 = 25 and 13 + 12 = 25
https://letsplaymaths.com/Class-6-Whole-Number.html

9The mathematical fact that 7+8 = 8+7 is known as Commutative law
to ten to calculate other math facts and can extend this to multiples of ten in later grades. for 8 + 5 think 8 + 2 + 3 is 10 + 3 or 13 3 Addition Subtraction Compensation Using other known math facts and compensating. For example, adding 2 to an addend and taking 2 away from the sum. for 25 + 33 think 25 + 35 -2 is 60 -2 or 58 3 Addition …
https://www.edu.gov.mb.ca/k12/cur/math/mm_gr8/strategies.pdf

10The mathematical fact that 7+8 = 8+7 is known as Commutative law
CCSS.Math.Content.1.OA.B.3 Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
http://firstgradecommoncore.weebly.com/operations–algebraic-thinking.html

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1.  List of mathematical symbols
The following is a list of mathematical symbols used in all branches of mathematics to express a formula or to represent a constant. A mathematical concept…
https://en.wikipedia.org/wiki/List of mathematical symbols

2.  Space (mathematics)
precisely definable as the cultural artifact of mathematics itself. For more information on mathematical structures see Wikipedia: mathematical structure, equivalent…
https://en.wikipedia.org/wiki/Space (mathematics)

3.  Parity (mathematics)
equality is likely to be correct by testing the parity of each side. As with ordinary arithmetic, multiplication and addition are commutative and associative…
https://en.wikipedia.org/wiki/Parity (mathematics)