Tag Archives: RightStart Math

  • RightStart and Addition Facts

    By Joan A. Cotter, Ph.D. https://rightstartmath.com/ Addition Addition can be thought of as finding the whole when the parts are known. Place value greatly simplifies finding the sum of two numbers. To be efficient in adding, we start with the sums of numbers 1 + 1 through 9 + 9. These are best learned through Continue Reading