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单元 7:Equations & inequalities

1,900 个可获得的掌握积分

关于本单元

Solving equations is a superpower. It means we can model a situation with an equation in any way that makes sense to us, even with an unknown value in the middle. Inequalities are for situations with many true options, like how many pages I can send in my letter using just 1 stamp.
升级上述技能,积攒 640 掌握点

练习

升级上述技能,积攒 320 掌握点
升级上述技能,积攒 240 掌握点

练习

学习

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练习

升级上述技能,积攒 320 掌握点
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单元测试

升级本单元里的所有技能,积攒高达 1900 掌握点!