A free app for Android, by Pham Thuy Nhan.
Đậu Lém – Toán 5 is a learning game with a cartoon character called Dau Lem that is an integration between entertainment and education. Dau Lem is a curious little boy that likes to explore the world. He also has a talent for solving math problems.
This game is based on the educational program of the Ministry of Education. It includes the following lessons:
Primary School Math Review: review the basic math concepts that have been reviewed in the primary school.
Primary School Unit of Measurement: review the units of measurement and how to calculate the values.
Primary School Fractions: learn to calculate the fractions.
Secondary School Decimals: learn to calculate the decimal numbers.