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小明友,二年级上学期你已经学习了连加、连减、加减混合以及乘加、乘减的计算,现在我们一起来学习用这些计算方法解决一些实际问题。因为你已经有了一些知识和经验的积累,相信你很快就能学会的。
Xiao Mingyou, sophomore last semester You have already learned the addition, subtraction, addition and subtraction, multiplication and addition, multiplication and subtraction, and now let’s learn some of these calculations to solve some practical problems. Because you already have some accumulated knowledge and experience, I believe you will soon learn.