Fourth grade math
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Fourth grade math
1. Decimal addition and subtraction
2. Digit by digit *
3. Take a few tens of a few hundred
4. Digit by digit (11*111)
5. In addition to the entire whole ten ten *
6. In addition to hundreds of dozens of the whole number of ten
7. In addition to the entire ten digit
8. In addition to double-digit three-digit *
9. Fractional retention
10. Decimal addition and subtraction *
11. Double-digit arithmetic