Pune in casete numerele potrivite:7×9=36+....;9×7=56+.....;6×6=.....×4;6×4=3×.....;9×8=81-.....;9×7=72-.....


Răspuns :

7×9=36+27

9×7=56+7

6×6=9×4

6×4=3×8

9×8=81-9

9×7=72-9