¿Cuáles 3 van juntas? 

Diagram, rectangle partitioned vertically into 4 rectangles. Left rectangle, vertical side, 4, horizontal side, five thousand. Area, twenty thousand. Colored blue. Second rectangle, horizontal side, three hundred. Area, question mark. Colored red. Third rectangle, horizontal side, 40. Area, one hundred sixty. Colored yellow. Right rectangle, horizontal side, 2. Area, 8. Colored green

Diagram, rectangle partitioned vertically into 3 rectangles. Left rectangle, vertical side, 4, horizontal side, five thousand. Area, twenty thousand. Middle rectangle, horizontal side, three hundred. Area, one thousand two hundred. Right rectangle, horizontal side, 42. Area, one hundred sixty eight. 

Diagram, rectangle partitioned vertically into 4 rectangles. Left rectangle, vertical side, 5, horizontal side, five thousand. Area, twenty five thousand. Colored blue. Second rectangle, horizontal side, three hundred. Area, one thousand five hundred. Colored red. Third rectangle, horizontal side, 40. Area, two hundred. Colored yellow. Right rectangle, horizontal side, 2. Area, 10. Colored green.

Diagram, rectangle partitioned vertically and horizontally into 6 rectangles. Top left rectangle, vertical side, 30, horizontal side, two hundred. Top middle rectangle, horizontal side, 40. Top right rectangle, horizontal side, 5. Bottom 3 rectangles, vertical side, 5.

Diagram, rectangle partitioned vertically and horizontally into 6 rectangles. Top left rectangle, vertical side, 30, horizontal side, two hundred. Top middle rectangle, horizontal side, 40. Top right rectangle, horizontal side, 5. Bottom 3 rectangles, vertical side, 5.

Diagram, rectangle partitioned vertically and horizontally into 6 rectangles. Top left rectangle, vertical side, 30, horizontal side, two hundred. Top middle rectangle, horizontal side, 40. Top right rectangle, horizontal side, 5. Bottom 3 rectangles, vertical side, 5.

1. Por turnos, escojan un grupo de expresiones que al sumarlas tengan el mismo valor que . Usen los diagramas si les ayuda.
2. Expliquen cómo saben que la suma de sus expresiones tiene el mismo valor que .
3. ¿Cuál es el valor de ? Expliquen o muestren su razonamiento.

Andre

multiply. two hundred forty five times 35. 9 rows. First row: 2 hundred forty five. Second row: multiplication symbol, 35. Horizontal line. Third row: 1 thousand. Fourth row: 1 thousand two hundred. Fifth row: 1 hundred fifty. Sixth row: 1 thousand. Seventh row: 2 hundred. Eighth row: plus 25. Horizontal line. Ninth row: 8 thousand five hundred seventy five

Clare

multiply. two hundred forty five times 35. 9 rows. First row: 2 hundred forty five. Second row: multiplication symbol, 35. Horizontal line. Third row: 25. Fourth row: 2 hundred. Fifth row: 1 thousand. Sixth row: 1 hundred fifty. Seventh row: 1 thousand 2 hundred. Eighth row: plus 6 thousand. Horizontal line. Ninth row: 8 thousand five hundred seventy five

1. ¿En qué se parecen las estrategias de Andre y Clare? ¿En qué son diferentes?
2. Haz una lista de ecuaciones que representen los productos parciales que Andre y Clare encontraron.