Hello, the second volume of the second grade math book * * has 120 pages and is compiled by the Ministry. Different versions may be different, but they are all about 120 pages. The first unit "Division" is to learn division with remainder on the basis of division in the table (quotient is one digit). Combined with the activities of dividing things, let students realize that some things in life sometimes have a remainder after being divided evenly, master the trial quotient method with remainder division, and solve some simple practical problems in life.

2. Unit 2 "Mixed operation" (multiplication and addition, multiplication and subtraction, division and addition, addition and subtraction, two-step parenthesis). Combined with the actual situation, let students understand that they should follow the operation order of "multiply first, then divide, then add and subtract" and "calculate what is in brackets first", and can calculate related problems according to these operation orders and solve some practical problems.