Numbers / Sounds
Uno: 1. Uno
Dos: 2 Dos
Tres: 3. Trez
Cuatro: 4 Kuatro
Cinco: 5. Sinko
Seis: 6. Seis
Siete: 7. Siete
Ocho: 8. Ocho
Nueve: 9 Nueve
Diez: 10. Dies
Once: 11. Ownse
Doce: 12. Dose
Trece: 13. Trese
Catorce: 14 Katrose
Quince: 15 Kinse
Hope this helped:):)
I am afraid that the only way for you to pass spanish is to actually put in the work, there are no shortcuts to it. There are some way to learn the basics fast though which I would really recommend. Also if you need help you have this platform to ask all the questions you want.
I hope it helps, Regards.