Second Grade Cube Math

Second Grade Cube Math consisted of Chapter 25 can learn the principles of addition and subtraction step by step.
Second grade students learn math based on the understanding of the concept of number and amount directly manipulate objects or cubes.

- contents-

1. 3-digit numbers I
2. 3-digit numbers II
3. Sequence 3-digit numbers
4. Comparing numbers up to 999
5. Adding 2 numbers
6. Subtracting 2 numbers
7. Adding 3 numbers
8. Subtracting 3 numbers
9. Mixed operations 3 numbers
10. Adding 2-digit numbers I
11. Adding 2-digit numbers II
12. Subtracting 2-digit numbers
13. Addition sentence -> Subtraction sentence
14. Various ways of Adding I
15. Various ways of Subtracting I
16. Mixed operations 2-digit numbers
17. Complete addition sentence
18. Complete subtraction sentence
19. Adding 3-digit numbers I
20. Subtracting 3-digit numbers I
21. Various ways of Adding II
22. Various ways of Subtracting II
23. Adding 3-digit numbers II
24. Subtracting 3-digit numbers II
25. Mixed operations 3-digit numbers