Huh? There's an extra apple!/咦？多了一个苹果！

This is a creative number recognition picture book for young children. Flipping it from the front, you see more and more apples on the tree. Flipping it from the back, you see the balls on the ground disappearing one by one. Through a simple and fun story, children learn to recognize numbers and practice counting and basic addition and subtraction.

这是一本低幼创意数字认知绘本，从正面翻，树上的苹果越来越多了。从背面翻，地上的皮球一个个不见了。在简单趣味的故事中，认知数字，学会数数及基本的加减法。