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addition and subtraction within 50
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CN¥ 0.0 |
addition and subtraction mixed operation oral arithmetic card
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CN¥ 0.0 |
addition and subtraction within 10 of full horizontal oral arithmetic card
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CN¥ 0.0 |
addition and subtraction of full horizontal oral arithmetic card less than 100
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CN¥ 0.0 |
addition and subtraction of full horizontal oral arithmetic card within 20
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CN¥ 0.0 |
addition and subtraction within 30 of full horizontal oral arithmetic card
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CN¥ 0.0 |
off-type oral arithmetic card
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CN¥ 0.0 |
vertical oral arithmetic card
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CN¥ 0.0 |














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