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  3. Numbers from 21 to 100
  4. Counting Numbers from 21 to 100
  5. Counting Numbers from 80 to 89

Grade 1 Vietnam School Math Counting Numbers from 80 to 89

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Grade 1
1. Shapes and Solids Around Us
2. Spatial Understanding
3. Numbers from 1 to 10
4. Numbers from 11 to 20
5. Numbers from 21 to 100
5.1. Counting Numbers from 21 to 100
5.1.1. Counting Numbers from 20 to 29
5.1.2. Counting Numbers from 30 to 39
5.1.3. Counting Numbers from 40 to 49
5.1.4. Counting Numbers from 50 to 59
5.1.5. Counting Numbers from 60 to 69
5.1.6. Counting Numbers from 70 to 79
5.1.7. Counting Numbers from 80 to 89
5.1.8. Counting Numbers from 90 to 100
6. Numbers from 1 to 100
7. Addition (1 to 20)
8. Subtraction (1 to 20)
9. Addition and Subtraction (1 to 20)
10. Addition and Subtraction of Numbers up to 100
11. Multiplication
12. Skip Counting
13. Patterns and Shapes
14. Time
15. Probability
16. Data Handling
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