Math Games at Sheppard Software
A bunch of different games to practice addition, subtraction, multiplication, and division facts: Fruit Shoot, Pop Up Math, Math MahJong, Matching games, Make 24, and many more. The site also has games for place value, coins, fractions, and other topics. www.sheppardsoftware.com/math.htm
A game-based online program just for math facts. It provides intelligent, adaptive practice of math facts with many games, and children get to shop things for their avatars with the points they gain. Provides robust reporting for the teacher/educator. A two-week free trial available. Subscriptions: $35 per student per year, or qustom quote for a school license. www.reflexmath.com
Math Mammoth Add & Subtract 2-A
A self-teaching worktext for 2nd grade that covers “easy” additions and subtractions within 0-100; such as 24 + 5 and 89 − 7, or adding or subtracting whole tens; memorizing the basic addition facts of single-digit numbers, and learning to use them with subtraction.
Available as an affordable download ($4.50), and also as a printed copy.