Quinze són quinze 3

Synopsis of Quinze són quinze 3

«Quinze són quinze 3» is the quick calculation workbook by Lluís Segarra and David Barba, published by Text in paperback (32 pages, in Catalan).

Workbook from the «Quinze són quinze» series dedicated to quick calculation. Its activities focus on mental arithmetic, mastery of operation properties and development of personal strategies for problem-solving, with exercises designed for the middle cycle of primary education.

Third volume of the «Quinze són quinze - Q. Càlcul ràpid» collection; first edition published in 1995.

Recommended for students in the middle cycle of primary education, particularly the third grade, within the mathematics area.