Games. Games. Games. I have figured out that I can get my son to do practically anything if I turn it into a game. This makes me feel like the queen of deception ... in a good way. To practice adding two-digit numbers (i.e. carrying numbers), I gave my son a mountain-climbing addition challenge. I played too, so we could see who climbed higher (i.e. added to get the largest number). Playing is simple. Download the one-page PDF I made. Cut apart and laminate. Grab two fine-tip dry-erase markers and a pencil and paper. |Download a PDF of these two cards here.|Instructions: Write five single-digit numbers at the bottom of the mountain; do not use the same number more than once. (Use a dry-erase marker so any mistakes can be wiped off with a paper towel, and the mountain can be cleared for another round of play.) Add the numbers up the mountain until you’re at the top. The higher you go, the harder the math becomes. Use a scratch pad of paper to solve the problems. Keep your card secret from your opponent. When you’re done adding, reveal your card to see which player climbed the highest. We each climbed five mountains – sometimes to heights just over 100. Whoa! Mountain climbing is great exercise – or I should say, a great math exercise!