standard_description: Explain why addition and subtraction strategies work, using place value and the properties of operations. (Explanations may be supported by drawings or objects.)
problem_activity: Task
How many ten-dollar bills equal a hundred-dollar bill?
Jem had 20 ten-dollar bills. How many hundred-dollar bills can she trade them for?
Dan had 6 hundred-dollar bills. How many ten-dollar bills can he trade them for?


aligns: no