Mathematics
Number Representation & Place Value
Procedural
11–13 yrs
Decimal place value (age 11+)
小数位值（11岁以上）
Description
Round numbers and measures to an appropriate degree of accuracy including to a specified number of decimal places or significant figures
Mastery Evidence
- Round numbers to a given number of decimal places
- Round numbers to a given number of significant figures
- Choose an appropriate degree of accuracy for a given context
Assessment Prompt
Can your child round a measurement like 12.3746 km to 2 decimal places (12.37 km) or 3 significant figures (12.4 km) — and explain when each level of precision is appropriate?
Prerequisites 1
Decimal place value
保留小数位/有效数字的四舍五入是将六年级四舍五入方法延伸至任意数位
Unlocks 1
Estimating by rounding
