Destrezas de Matemáticas

Juego #1 http://www.sheppardsoftware.com/mathgames/placevalue/mathman_place_exp.htm

Juego #2 https://www.ixl.com/math/grade-3/convert-between-standard-and-expanded-form

Juego #3 https://www.ezschool.com/play/grade4/math/what-is-the-value-of-the-underlined-digit/23#