Mathematics Number Representation & Place Value Conceptual 10–11 yrs

Patterns with Powers of Ten

10的幂次规律

Description

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)

Mastery Evidence
  • Write 10⁴ = 10,000 and explain the exponent means four factors of 10
  • Explain why 3.4 × 10² = 340 by describing the decimal shift
  • Predict 2.56 × 10³ without calculating and explain the pattern
Assessment Prompt

Can your child 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?