1. Double digit number Lerning 10 (1)
Learning numbers up to 19 (2)
Learning several tens (3)
Learning several tens and over (4)
2. Addition with regrouping
3. Addition of 10 + single digit number using mental calculation
4. Addition by mental calculation of three numbers whose sum of two numbers reaches 10 or more
5. Splitting a number into two numbers
6. Addition with regrouping using mental calculation (1)
7. Addition with regrouping using mental calculation (2)
8. Addition with regrouping using mental calculation (3)
9. Addition with regrouping using mental calculation (4)
10. Learning 2 times of a number
11. Addition with regrouping using mental calculation (5)
12. Addition with regrouping by mental calculation (6)
13. Addition Nine Nine
14. Addition in various methods using mental calculation
Achievement test
Answers