These larger primary 1 – 12 spotted dice are perfect for young students for subitizing, counting, comparing numbers, using with number lines or rulers (especially effective when used with our Foldable Rulers MN36). We also pair them with 2F adding and subtracting dice for early operations. THEY ARE MEANT TO BE PAIRED with DC20 12-sided numeral dice. These two types of dice are color aligned – meaning that 6 green spots match 6 numeral in green. Your student will develop subitizing quickly with this feature.