Number Invaders are descending upon the friendly inhabitants of a distant planet.
You'll need instant recall of math facts and a steady hand to keep them away!
More Math Games to Play
Number Invaders Addition - Learning Connections
Essential SkillsMental Math - add and subtract numbers by memory or through other efficient methods
Common Core Connection for Grades 1 and 2Know from memory all sums of two one-digit numbers.
Apply properties of operations as strategies to add and subtract.
Fluently add and subtract within 20.