Mathematics
Counting & Cardinality
Procedural
7–8 yrs
Counting Within 1,000
1000以内的数数
Description
Count within 1000, including skip-counting by 5s, 10s, and 100s
Mastery Evidence
- Count forwards and backwards within 1000 from any starting number
- Skip-count by 5s from any multiple of 5 to 1000
- Skip-count by 100s from any number (e.g. 150, 250, 350 …)
Assessment Prompt
Can your child count confidently up to 1000 — and if you ask them to count by hundreds from 200, or by tens from 650, can they do it without losing their place?
Prerequisites 2
Counting in 2s
按5、10、100数到1000是对二年级跳数学习的延伸
The multiples of 100
理解100的倍数有助于以100为单位进行跳数计数
Unlocks 1
Negative Numbers
