Why can a subtraction problem be rewritten as a addition problem without changing the outcome?

Javier and his study group designed a word problem, equation, table, and graph that were all supposed to represent the same information, as shown below.

What is - 6-16? and then subtract 2

Why is 3 a divisible of 2,838

What is the square root of 756 to the nearest tenth?

14285714/1000000000 simplified

How to solve for scientific notation

A collection of nickels and dimes is a total value of $2.00 and contains 25 coins. How many of each coin is in the collection?

A group of musicians want to sell a total of 1,000 tickets for 20 concerts. Suppose they sell the same number of tickets for each concert. How many tickets will they sell for each concert? Explain How you solved the problem.

Each of two urns contains green balls and red balls. Urn 1 contains 10 green balls and 8 red balls. Urn 2 contains 3 green balls and 10 red balls. If a ball is drawn from each urn, what is P (red and red) ?

How do you calculate the exterior angle of a decagon