🔢 Mathematics · Number Representation & Place Value

A Hundred Is Ten Tens

Understand that 100 can be thought of as a bundle of ten tens — called a 'hundred'

Typical age: 7–8 years

“Can your child 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?”

0 / 3 mastered

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Needs first

A Ten Is Ten OnesREQUIRED
100 as ten tens extends understanding of 10 as ten ones
The two digits of a two-digit numberREQUIRED
Must understand two-digit place value before extending to hundreds

Unlocks next

The three digits of a three-digit numberREQUIRED
Three-digit place value requires understanding 100 as a unit
The multiples of 100REQUIRED
Multiples of 100 require understanding 100 as a unit