Math with Grin 678 is the second part of a method to learn and practice math while playing in an underwater adventure. AGES: between 6 and 8 years. More than 2000 different exercises. In the new game the creators of Pipo will solve thousands of exercises at different levels and earn rewards in the form of fruits to feed our alien friends. While they discover the underwater ruins they will practice: NUMBERING CENTENAS AND THOUSANDS Identify numbers: up to 100, hundreds and thousands. Complex n