The study of decimals is the focus of the fourth grade in the next semester, including the meaning and nature of decimals, the meaning and composition of decimals, the reading and writing of decimals, the comparison of decimal sizes, the nature of decimals, the movement of decimals, the approximation of decimals, the conversion of units, the rewriting of decimals, etc., which are all preparations for the subsequent decimal calculation and important contents of the concept system of number theory.

Decimal addition, subtraction, decimal multiplication, decimal division and mixed operation run through the mathematics study of grade four and five, and gradually enter decimal study from the next semester of grade four. Decimal learning is the expansion of the new number field, which has strong correlation, so we must consolidate our knowledge in class.

Tips for learning mathematics

1, you should be good at thinking when learning mathematics, and the answers you come up with are far more impressive than those others say.

2. Do a good preview before class, so that we can better digest and absorb the unknown knowledge points in math class.

3, the mathematical formula must be memorized, and it must be deduced and can be deduced.

4. The most basic thing to learn mathematics well is to master the knowledge points of textbooks and exercises after class.

5. 80% of the scores in mathematics come from the basic knowledge, and 20% of the scores are difficult, so it is not difficult to test 120.

6. Mathematics needs to be done by heart. It is difficult for impetuous people to learn math well. Doing the problem in a down-to-earth manner is the last word.