【實用媒體與影片app】USAgrade4Math|最夯免費app

四年級的課程中，你將學習多位數的乘法和除法。並且學習不同單位之間的轉換以及一些幾何的基本概念（如:線條，光線和角度）。

By the 4th grade ,not only will you be a multi-digit addition and subtraction rockstar, but you'll extend the multiplication and division that you started in 3rd grade to several digits. You'll also see how they relate to decimals. On other fronts, you'll learn how to convert between different units (which is super important when comparing the size and speed of robot unicorns in different countries) and continue your journey thinking about various shapes in two dimensions. Some of the foundational concepts of geometry (like lines, rays and angles) also get introduced.

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