It means that when somebody reads the work you did as you solved a math problem, they can see that you had a handle on what you were doing, and a reason for doing it the way you did it, and your approach to the solution didn't resemble the actions of a centipede being washed down the drain.
In math, check means to check your work by reversing the problem and making sure it works out.
0.0056 x 0.75 = 0.0042
-0.25
50 what's "mental math" supposed to mean? if it just means you did it in your head, then there is no difference between mental and regular math, except that it is harder to check your work.
by doing math
To work out a correct solution to a problem.
It depends on the math problem, some how you have to work the pattern into the math problem. and you will need to figuer if you can prodict if it is right.
math is used when you are trying to brake a problem down or trying to work something out
show the work to something or a problem to something ; math problem or scientific method :)
hoverboard work on the genuis
It means that when somebody reads the work you did as you solved a math problem, they can see that you had a handle on what you were doing, and a reason for doing it the way you did it, and your approach to the solution didn't resemble the actions of a centipede being washed down the drain.
Anyone can if they work hard at it.
The dog barked loudly at the mailman. She painted a beautiful landscape. He ran quickly to catch the bus. The teacher explained the math problem carefully.
In math, check means to check your work by reversing the problem and making sure it works out.
Work what is inside the parantheses first, then do the rest of the problem. Example: 4+(6-2)= 4+4=8
Checks and balances work by taxes and government preatty much doing the math of your money for you.