It is an acronym to advise a strategy for problem solving in mathematics.
R - Read
U - Understand (or Underline key facts)
C - Calculation (some write 'choose', as in to choose your calculation method)
S - Solve
A - Answer
C - Check
Hope this helps.
read understand choose solve answer check
A expression in maths is a collection of terms without an equality sign.
Its maths
"tenth"
division
What symbol
mean no
Related to.
circle
direction
Adding
The mean is usually the arithmetic mean - there are other means in maths. For a set of numbers, the arithmetic mean is the sum of the numbers divided by the number of numbers.