com.diegomodevs.additionandsubtractionforkidsfirstgrade

Version: 4.1 and up - Updated: September 2, 2019
Sumsum2 is an Addition and Subtraction for kids first grade app that will help children develop their ability to solve Addition and Subtraction problems.The Sumsum2 version aims to improve and adapt for a better appreciation of the mathematical exercises of Addition and Subtraction for ...