RootsEDU小学课程图谱与学习系统
数学 / Mathematics 数的表示与位值 / Number Representation & Place Value CONCEPTUAL 10 至 11 岁

10 的幂规律

Patterns with Powers of Ten

解释乘以 10 的幂时末尾零的个数变化规律,以及乘以或除以 10 的幂时小数点的移动规律;用整数指数表示 10 的幂(如 10³ = 1000)。

Explain patterns in zeros when multiplying by powers of 10 and in decimal-point placement when multiplying/dividing by a power of 10; use whole-number exponents to denote powers of 10 (e.g. 10³ = 1000)

学习证据 / Evidence

评估问题 / Assessment

{{name}} 能解释为什么 10² = 100、10³ = 1,000,以及为什么乘以 10 只是在末尾加一个 0——并把这种零的规律与位值联系起来吗?

Can {{name}} explain why 10² = 100 and 10³ = 1,000, and why multiplying by 10 just adds a zero — connecting the pattern of zeros to place value?

先修关系图 / Learning path