A party store offers small balloons and large balloons. You can choose from pink, blue, green, and yellow balloons. You can choose from silver, gold, and white ribbons. Use the counting principle to find the number of different ways you can choose a balloon with a ribbon.There are 4 colors and 3 ribbons, but there are also 2 SIZES of balloons. Multiply in the 2 sizes

There are 2 sizes * 4 colors * 3 ribbons = 24 different ways you can choose a balloon with a ribbon.