Numbers on the cards

I was just reading up about the meaning of the numbers when it comes to the Minor Arcana and found this chart

1. (Aces) New beginnings, opportunity, potential
2. Balance, partnership, duality
3. Creativity, groups, growth
4. Structure, stability, manifestation
5. Change, instability, conflict
6. Communication, cooperation, harmony
7. Reflection, assessment, knowledge
8. Mastery, action, accomplishment
9. Fruition, attainment, fulfilment
10. Completion, end of a cycle, renewal

I just pulled a card for an exsample and got the Eight of Pentacles meaning mastery, action, accomplishment for the 8 and in the subject of work/caries (Pentacles)

I want to try using these number more in my readings but need to get them down to heart first!