1998 is there a rounded corner in the first grade?

Is there a Jiao Yuan in Grade 1 of 1998? No 1998 I haven't learned the basic knowledge of mathematics such as numbers, counting, addition and subtraction, and I haven't learned the ability and conditions of Jiao Yuanfen. Jiao yuan fen is the unit of RMB, Yuan yuan is the unit of RMB, and Jiao fen is the auxiliary unit of RMB.

Expectation mathematics problem

Where are the knowledge points of the first book of mathematics in the fourth grade of primary school, and the classification of angles?

How to tutor primary school mathematics one-on-one

Mathematics Zhenti of Jiangsu College Entrance Examination in 2003

How to spell out a regular heptagon inscribed with a circle with a puzzle?

Unit examination paper of the second volume of second grade mathematics

There are 30 difficult ways to solve math problems in grade eight.

Is it difficult to set sail in the new mathematics classroom?

What is first addition and subtraction?

How many math problems can I fill in the second grade at most?