Theory
Exercises
1. 
Identify the appropriate option
Difficulty: easy 
2

2. 
Find the value of the expression
Difficulty: easy 
2

3. 
Evaluate the expression
Difficulty: easy 
2

4. 
Determine additional cups of sugar
Difficulty: medium 
3

5. 
Evaluate the tapes wrapped in centimeters
Difficulty: medium 
3

6. 
Calculate the time taken
Difficulty: medium 
3

7. 
Find the two numbers
Difficulty: medium 
4

8. 
Evaluate the two numbers
Difficulty: hard 
4

9. 
Calculate the length and breadth
Difficulty: hard 
4

10. 
Find their present ages
Difficulty: hard 
4

Tests
1. 
Training test
Difficulty: medium 
9
