Mathematics·Number Representation & Place Value·conceptual
A Hundred Is Ten Tens
Understand that 100 can be thought of as a bundle of ten tens — called a 'hundred'
Suggested ages 7–8
Learning journey
Your child is mastering larger numbers — learning to read, write, and work with numbers up to 1000 by understanding how hundreds, tens, and ones work together.
Evidence of understanding
- Explain that 10 groups of 10 ones make 100
- Bundle ten tens sticks into one hundred and describe what happened
- Represent 100 using base-ten blocks showing 10 tens
Assessment prompt
Can A Hundred Is Ten Tens explain that ten full tens stacked together make one hundred — and that this is why 100 has a 1 in the hundreds place and zeros in the rest?
Standards alignment
2.NBT.1.aUS · ccss-math
100 as a bundle of ten tens
Common Core State Standards for Mathematics · 2