Presentation (Powerpoint) File
Be sure that you have an application to open this file type before downloading and/or purchasing.
Students determine how many marbles are purchased for a collection, and the cost of purchasing the marbles. This task requires students to use place value and the relationship between addition and subtraction to find sums and differences whether or not it is necessary to compose or decompose tens and hundreds. Students are also expected to use patterns of doubling and halving.