Adding & Subtracting

Adding and subtracting big numbers (3 digit and 4 digit ones) is tough. We are working on lots of different ways to practice this. Here we are adding a written number (like 543) to place value blocks.

Sumar y restar números grandes (los de 3 y 4 dígitos) es difícil. Estamos trabajando en muchas formas diferentes de practicar esto. Aquí estamos agregando un número escrito (como 543) para colocar bloques de valor.

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