In a Tarot deck every card has an assigned numerical value (with the exception of Court Cards). Minor Arcana (or "pip") cards are numbered one to nine. Major Arcana cards are assigned numbers from zero to 22, some of which may be added digitally for numerology purposes (10 = 1+0 or 1; 15 = 1 + 5 or 6, etc.). Court Cards have no numerical value....
Often, the Tarot cards themselves tend to relate to their meaning in numerology. For example, Aces (1's) in each of the four suits (Cups, Swords, Wands and Pentacles) speak to potential, opportunities and new beginnings. In numerology, the vibration of the number "1" also resonates with new beginnings, and creation. In Tarot, 2's represent duality, balance or the need to make a choice or decision. In numerology, 2's vibrate on a frequency of duality, dilemmas and balanced judgement using intuition.
The repeated occurrence of numbers in Tarot can also add to the meaning of a spread. For example, three 4's indicate the manifestation of an idea supported by a strong, fertile foundation, where intentions can take hold and flourish. Three 4's or 3x4 = 12 or the number 3 in numerology, which vibrates in alignment with energy, growth, expansion and the principles of increase. See the connection?
It can be really fun to play with numbers in a Tarot reading for both the reader and the Querent. It's another tool to gain even greater insight into the messages being brought forth.
Take moment to look back on past readings. Make the associations of the numbers that appeared in your spread. You'll very likely discover an entirely new level of information that you can use to your benefit. In the future, keep note of the numbers in your Tarot readings. Look for patterns, repetitions and synchronicities. While your reader may or may not integrate numerology into his/her standard readings, a simple Internet search for "numerology meanings" can help you get more bang for your buck. This is an exercise in empowered insightfulness. You don't have to be psychic, just curious. Everyone's entitled.