Mathematics Number Representation & Place Value Procedural 8–9 yrs

Rounding to 10, 100, 1000

向10、100、1000取整

Description

Round any number to the nearest 10, 100, or 1000

Mastery Evidence
  • Round 4,367 to the nearest 10 (4,370), 100 (4,400), and 1000 (4,000)
  • Explain the rounding rule using a number line (which multiple is closer)
  • Apply rounding to estimate calculations
Assessment Prompt

Can your child round a number like 4,738 to the nearest 10 (4,740), 100 (4,700), or 1,000 (5,000) — and explain which digit they look at to decide?