Theory
Exercises
1. 
Convert to algebraic expression
Difficulty: easy 
2

2. 
Transfer the phrase to algebraic expression
Difficulty: easy 
2

3. 
Determine the age
Difficulty: easy 
3

4. 
Get the unknown
Difficulty: easy 
3

5. 
Fill in the suitable values.
Difficulty: easy 
2

6. 
Say true or false
Difficulty: medium 
3

7. 
Switch algebraic form to verbal form
Difficulty: medium 
4

8. 
Calculate the required value
Difficulty: medium 
4

9. 
Find the unknown value
Difficulty: medium 
5

10. 
Convert the phrases into algebraic expressions
Difficulty: hard 
5

11. 
Determine the length of the region
Difficulty: hard 
5

12. 
Estimate the unknown value
Difficulty: hard 
5

13. 
Evaluate the values of unknown
Difficulty: hard 
5

Tests
1. 
Training test
Difficulty: medium 
7
