What is the name of an expression with an arrow?

Violation of the Ten Laws.

You need to draw an arrow to break the ten laws. Senior one mainly studies addition and subtraction within 20. The first grade mainly uses the method of ten to do addition and the method of ten to do subtraction. In order to distinguish the method of ten from the method of ten, when calculating the method of ten, the two numbers are not connected by arrows. When calculating the method of breaking ten, two numbers need to be connected by arrows, which is convenient for students to distinguish addition and subtraction.

What moment made you suddenly realize?

What are the prime numbers from 0 to 100?

There are answers to the difficult math application problems in the first volume of the fourth grade.

Summer homework with math characteristics in senior one.

Final examination paper of the first volume of sixth grade mathematics

What did Aleck learn in the red, yellow and blue parent-child park? Have you ever been there?

How to do the 20th problem of Tianjin liberal arts mathematics in 2004?

A summary of the research on how to cultivate students in the lower grades of primary schools to read mathematics

Where can I get the qualification certificate of Shaanxi mathematics competition coach?

Math calculation problems in the sixth grade of primary school [what can be simplified should be simplified]