Additive figures --- Introduction ---

This module contains for the time being 29 visual training activities of arithmetics (addition, substraction), which can be considered either as exercises or recreations.
These are all ``drag & drop'' activities, consisting of placing numbers or expressions into a picture, with geometric conditions on theirs sums. The first number in the list indicates the number of objects to place. With a wide variation of styles and difficulty levels in order to meet various requirements.

7: H


7: Bow tie


9: M


5: V


9: W


7: Asterisk


8: Square


5: Cross


7: Cube


9: Square + diagonals


9: Four squares


8: Grill


8: House


~10: Pentagon


~10: Pentagram


7: Pizza 3


9: Pizza 4


3: Pyramid I


5: Pyramid Ib


7: Pyramid Ic


9: Pyramid Id


6: Pyramid II


9: Pyramid IIb


~10: Pyramid III


6: Stool


8: Three squares


5: Bow tie


6: Triangle


6: Two squares


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Description: place numbers in geometric figures according to conditions on sums. interactive exercises, online calculators and plotters, mathematical recreation and games

Keywords: interactive mathematics, interactive math, server side interactivity, nice sophia antipolis university, algebra,arithmetic, addition, fraction, decimals, relative_number, roots, complex_number