Free X-Out Addition Puzzles

Want a math activity your kids will actually ask to do? These X-Out puzzles are part math, part logic puzzle, and a great break from worksheets.

The goal is simple: cross out numbers so the ones left add up to the target. Figuring out which ones to cross out takes number sense, mental addition and a little trial and error. That productive struggle is where problem solvers are made.

What’s inside:

• 4 original X-Out addition puzzles that build in difficulty

• Targets from 91 to 643, for practice adding 2-digit and 3-digit numbers in their heads

• Every puzzle checked to have exactly one solution

• A full answer key for grown-ups

• A printable PDF you can reuse with a page protector and a dry-erase marker