Hi! My name is Matthew

Instructions:

Insert numbers into empty fields in triangle (grape). The sum of two neighbouring numbers in one row must be equal to number below those fields. You may use only "pranskters" - numbers, which are known and located below triangle (grape).

1stGRADE, TRIANGLES WITH PRANKSTERS 32nd grade, Triangles with pranksters 3 levels2nd grade, Triangles with pranksters 4 levels3rd grade, Triangles with pranksters 3 levels3rd grade, Triangles with pranksters 4 levels4th grade, Triangles with pranksters 4 levels4th grade, Triangles with pranksters 5 levels5th grade, Triangles with pranksters 4 levels5th grade, Triangles with pranksters 5 levels6th grade, Triangles with pranksters 3 levels

Number of exercises: