The magical world of numbers
The first set of teaching material "The Magical World of Numbers" lets you know the writing rules of numbers, explore the magical decomposition of 2- 10, and master the tricks of addition and subtraction in 100.
The wonderful world of 1 1-20
The second set of teaching materials, The Wonderful World of 1 1-20, takes you into the digital kingdom of 1 1-20, learning the decomposition and oral calculation of1-20, and 100.
The challenge of carry addition
The third set of textbook "The Challenge of Carry Addition" makes you master more advanced mathematical operation skills and become a little expert in mathematics through manual calculation and mental calculation!
Abdication subtraction and three-digit challenge
The fourth set of teaching material "abdication subtraction and the challenge of three digits" takes you to explore abdication subtraction and the addition and subtraction of three digits. Mastering these skills will make your math level go up a storey still higher!
Demonstration of mathematical wisdom
Through the prodigy's quick trip to mathematics, you can master the mystery of mathematics in a relaxed and happy atmosphere, let mathematics become the wings of your wisdom and take you to a broader knowledge sky!