standard_description: Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.
problem_activity: Problem 6
Pre-unit
Find the value of each expression.
\(206 + 543\)
\(327 + 181\)
\(674 - 129\)


aligns: no