The wizard writes his numbers only as symbols.
The legend says which symbol means which number.
Swap every symbol for its number and then calculate as usual.
Example: 🔮 stands for 9, 🐉 stands for 4.
So the problem 🔮 + 🐉 means 9 + 4 = 13.
The numbers filled in show the solution.
Example
🔮 = 9🐉 = 4
🔮+🐉=13
🔮−🐉=5
🔮+🔮=18
🐉+🐉=8
🐉+🔮=13
For parents
What does this exercise practice?
Translate symbols into numbers reliably and calculate with them.
Common pitfalls
Before you calculate, write its number above every symbol, then nothing slips.
How to practice at home
Invent your own symbols for numbers at home and set each other problems.
Related: Calculation, Magic code