Number Pyramids (Addition Pyramids) – Printable Math & Logic Worksheets Grades 1-4 (PDF with Answer Keys)

30 printable number pyramid worksheets for grades 1-4: each brick is the sum of the two bricks below it, in 3 difficulty levels from base 3 to base 4 – every pyramid verified to be uniquely solvable. Answer keys included. A4 & US Letter friendly, instant PDF download. © lern-digital.de