If you're seeing this message, it means we're having trouble loading external resources on our website.

如果你被网页过滤器挡住,请确保域名*.kastatic.org*.kasandbox.org 没有被阻止.

主要内容

单元 2:Arithmetic with rational numbers

1,500 个可获得的掌握积分

关于本单元

The most fundamental branch of math is arithmetic operations. It consists of adding, subtracting, multiplying, and dividing numbers. By this point, performing these operations on whole numbers might be a piece of cake, but now we'll mix those numbers up with decimals and fractions. Get ready to slice and dice!
升级上述技能,积攒 240 掌握点

练习

升级上述技能,积攒 400 掌握点
升级上述技能,积攒 560 掌握点
接下来为您推荐:

单元测试

升级本单元里的所有技能,积攒高达 1500 掌握点!