You must use the process of "multiplication"that you learned in the 5th or 6th grade.
You should know all the math from 6th grade.
nothing is important on math
Math & Reading
No grade has 6th grade to 5th grade, sorry.
Math in the 6th grade is the first level of a video game. It's challenging, but after a few more levels, you realize how easy it was.
5th or 6th
she is giong into 6th grade
Well it actually depends on the level of the grade. For example if the grade is 1st grade then the teacher will teach 1st grade math. If its 6th grade or 7th grade the teacher will probably start to teach algebra.
Basically, by studying.