If your child can count to ten, they have then they have the ability to add one to at least eight numbers. This MathHack from Brainspray is designed to allow your child to start doing that in as little as a day, but on average in about a week.
Toddlers and preschoolers can do amazing things with numbers and letters, given the right incentives. Now you can measure their progress two numbers at a time, while helping them master adding and comparing numbers. If your toddler or preschooler can count to ten, this lesson is for you.