After learning this unit, students will be able to
1. master the vocabulary about the numbers;
2. know how to read cardinals and ordinals;
3. know how to toast and answer the questions about the numbers. sNLwMlJsj+3m3QM9/qr8jEyM11N+HSY/zxQzcgbIFT2Uk5jtTlx1W18Mi1bBiNFi