Space Race | Adding 10 and 100 Game

Space Race - Strengthen your child's ability to perform mental calculations by starting with adding 10 or 100 to three-digit numbers. Click on the correct answers to get your rocket going and win the race through space!

Common Core Standards

Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.


Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.