Now it gets a bit tougher! We dive into the multiplication tables from 6 up to 10. Many find these the hardest to learn, but with regular practice, you'll soon be answering 7x8 faster than you can blink. Don't give up!

Time for the next step! Here we practice subtraction with numbers up to 30. Being able to quickly see the relationships between numbers is crucial for feeling confident with digits. Challenge yourself to answer as fast as possible.

Random-style values through 200 force flexible Spanish recall: ones, teens, and tens in one deck so you are not only comfortable with “clean” decades.

Unpredictable values up to 200 in Swedish: teens, units, and tens combined the way they appear in real speech, not only textbook decades.

Master elements 25–36, including essential transition metals and noble gases.

Practice adding TypeScript type annotations to variables and understand how type inference works in everyday code.