it means to take an educated guess at what you think the answer is going to be
A guess
In math, check means to check your work by reversing the problem and making sure it works out.
Estimate means guess.
i think it means to check your answer
It means make an estimate that is too large.
It means to estimate something as more than its real value.
i am not sure what it means but I think it stands for Brackets Intervals Addition and Subtraction but you will have to check
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.
It means to compare and check the difference of a shape. Like whats the same and different.
It means the same in math as it means else where--it means not reasonable. If you show mathematical steps that are not reasonable to solve a math problem or show a math proof, then your math is unreasonable.
I learned this at school and QDPAC stands for Question Data Plan Answer Check and it is perfect for 6th graders.
it matters what math question...