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Should I buy oral math in senior two or oral math in senior two in summer vacation?
Second grade oral arithmetic. After the summer vacation begins, the second grade will be promoted to the third grade. It is necessary to consolidate knowledge and lay a good foundation for the study of grade three. It is necessary to buy oral arithmetic practice. The oral math problem in grade three is more difficult, and students will not do it until they learn it. They need to buy oral arithmetic in grade two to consolidate their knowledge in grade two and deepen their impression of learning.