1. cm and m
2. Line segment
Unit 1 Arrangement and Review
Addition and subtraction within 100 (2)
1. Two digits plus two digits
2. Two digits minus two digits
Writing calculation of two digits minus two digits in 1 class.
The second class solves problems.
3. Addition, subtraction and addition and subtraction.
Addition, subtraction and addition and subtraction in 1 class.
Lesson 2 Estimation of Addition and Subtraction
Practice: I have grown taller.
Unit 2 Arrangement and Review
A preliminary understanding of three corners
Unit 3 Arrangement and Review
Four table multiplication (1)
1. A preliminary understanding of multiplication
2.2 ~ 6 multiplication formula
Lesson 65438 Multiplication Formula of Lesson 5 +0
The multiplication formula of the second, third and fourth lessons in the second class
Math is used in the third class.
Lesson 4 multiplication formula of 6
Unit 4 Arrangement and Review
Step 5 observe objects
Unit 5 Arrangement and Review
Six Table Multiplication (2)
The multiplication formula of 1.7
Lesson 65438 Multiplication Formula of Lesson 7 +0
What is the multiple of a number in the second lesson?
2.8 multiplication formula
3.9 multiplication formula
4. Multiplication formula table
Practice: Take a look and wave.
Unit 6 Arrangement and Review
Seven statistics
Unit 7 Arrangement and Review
Eight mathematical wide angles
Unit 8 Arrangement and Review
JIU comments on general manager
1. Numbers and Algebra
2. Space and graphics
3. Statistics and probability
A complete solution to the exercise
A complete solution to the exercises in this book.
Complete solution of textbook exercises