Subtraction Fiesta : Subtractions and mental calculation.
1. Subtraction game to learn mental calculation strategies.
2. Subtraction Battle to play with friends and enjoy Math.
3. Friendly competition with leaderboard, unlock achievements.
Many levels to learn all about mental calculation and subtractions' strategies.
- a star appears in the table of contents when the kids master the strategy.
- a full curriculum to work all the subtraction strategies.
- there is enough steps to make the students progress in mental math.
- choice of languages : French and English.
- a clear table of contents with all the strategies kids learn at school.
- examples for each strategy.
- clear explanations for each strategy used with the calculation.
Table of contents :
1. Subtract One-Digit Numbers from One-Digit Numbers without regrouping.
2. Subtract One-Digit Numbers from One-Digit Numbers without regrouping.
3. Subtract One-Digit Numbers from 10.
4. Subtract One-Digit Numbers from Two-Digit Numbers without regrouping.
5. Subtract One-Digit Numbers from Two-Digit Numbers with regrouping.
6. Subtract One-Digit Numbers from Two-Digit Numbers with regrouping.
7. Subtract One-Digit Numbers from Two-Digit Numbers with/without regrouping.
8. Complete to the next Tens.
9. Subtract 10.
10. Subtract and think about 8-2.
11. Subtract and think about 9-5.
12. Subtract and think about 6-3.
13. Subtract and think about 7-4.
14. Subtract and think about easiest calculation.
15. Subtract Tens and think about easiest calculation.
16. Subtract Tens and think about easiest calculation.
17. Subtract two multiples of 10.
18. Subtract one multiple of 10 from Two-Digit Numbers.
19. Subtract one multiple of 10.
20. Compare subtractions.
21. Subtract One-Digit Numbers.
22. Subtract and think about 17-4.
23. Subtract in two parts.
24. Subtract 9,11.
25. Subtract Two-Digit Numbers from Two-Digit Numbers without regrouping.
26. Subtract 19,29.
27. Subtract 18,28.
28. Subtract and use decomposing in a difference.
29. Complete to 100.
30. Complete to the next Hundreds.
31. Subtract 100 from Three-Digit Numbers.
32. Subtract two multiples of 100.
33. Subtract one multiple of 100 from Three-Digit Numbers.
34. Subtract Three-Digit Numbers from Three-Digit Numbers without regrouping.
35. Subtract and use decomposition from Three-Digit Numbers.
36. Subtract 99,199,299.
37. Subtract 98,198,298.
38. Subtract 101,201.
39. Subtract and use the decomposition in a difference.
40. Subtract and use the decomposition (+).
...and much more.