The first volume of Primary School Mathematics published by People's Education Press: 1 measurement of addition and subtraction within 20,000 (2) 3 quadrilateral 4 division with remainder 5 hours, minutes, seconds, more than 6 digits multiplied by one digit 7 score Preliminary understanding 8 possibilities 9 wide-angle throwing of mathematics 10 Total review catalogue of the second volume of textbooks for the third grade: 1 position and direction 2 division 3 statistics for 4 years. A Preliminary Understanding of Making Calendar on Month and Day 5 Even Number Multiplying Even Number 6 Area 7 Decimal 8 Problem Solving Design Campus 9 Mathematics Wide Angle 10 General Review