Sum It Up! Try to use as many numbers as possible in your quest to victory! Draw from a deck of cards to determine your number, then mark all of the different numbers that can be used to create sums equal to the number you picked.
Ten-Twenty-Thirty: "The objective of the game is to try to get each row of three cards to equal a sum of a multiple of 10...To make the game more challenging, try finding sums of different multiple bases. For example, if you use 6 as a base, sums would have to add to 6, 12, 18..."