standard_description: Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
problem_activity: Problem 6
Pre-unit
Find the value of each expression.
\(206 + 543\)
\(327 + 181\)
\(674 - 129\)


aligns: no