3.1. Addition
3.2. Subtraction
3.2.2. Subtract numbers
3.2.4.2. Subtract numbers: Find the minuend
3.2.5. Word Problems on Subtraction
7. Fractions
8. Decimals
10. Rounding
12. Percentage
13. Unitary Method
14. Measurement
15. Time
16. Money
17. Geometry
18. Data Handling
Turkey
