Build confidence by adding 2 and 3 numbers from tens to a trillion.Fun for Grade 2 and up (ages 7 - 107)Over 1,300 addition problems.Focus on one skill at a time - addingSet a timer for an additional challenge and increased mental focus. Compete with your children and family for a friendly contest.Large PrintEnjoy mazes and fun facts after every section.Learn how long it takes to count to a billion plus how much a million ants weigh.Cute animals on every pageScientific studies show that looking at cute images help shift attention in order to focus on details better.
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