"Addition Blocks" game logo with colorful block letters

ADdition Blocks

Test your addition skills and speed! Destroy falling sum blocks by clicking on connected digit blocks. Add fast, or the sum blocks will stack up!

A digital game interface showing numbered blocks arranged in stacks with numbers 1 to 5. A virtual globe is on the left side, and a ruler, pencil, and paper are on a wooden desk in the foreground. A baseball and books are on the right side. The top of the screen displays level, score, and time.
  • In this Addition game, Test your addition skills and speed! Destroy falling sum blocks by clicking on connected digit blocks. Add fast, or the sum blocks will stack up!

  • Fluency Games