Unit 4 Lesson 1Numbers习题一、 基础过关读一读 ,请给下列数字排序号。 one three seven ten five _二、 综合训练 小朋友, 你是数学小天才吗? 请试着算一算吧。1. three one=_ 2. two + _= five3. four _ = two 4. _+ two = three三、 拓展应用 朗读本课单词三遍,使用“学乐师生”APP录音,然后与全班同学分享。 找对子。 eraser desk bear balloon bed 参考答案一、基础过关 one three five seven ten 二、综合训练1. three one = two 2. two + three = five3. four two = two 4.one + two = three三、拓展应用略。