Mathematics
Number Representation & Place Value
Procedural
10–11 yrs
Decimal place value
小数的位值
Description
Round decimals to any place using place-value understanding; round any whole number to a required degree of accuracy
Mastery Evidence
- Round 3.4567 to 2 decimal places (3.46)
- Round 7,654,321 to the nearest 100,000 (7,700,000)
- Use rounding to estimate 4.83 × 2.17 ≈ 5 × 2 = 10
Assessment Prompt
Can your child round a decimal like 3.748 to one decimal place (3.7) or two decimal places (3.75) — and explain which digit they look at to decide?
