Base-10 Builder

Click 10 ones!

Let's group them to make a Ten.

Click 10 tens!

Let's group them to make a Hundred.

Trade to fix!

We can't have 10 or more in one place.

Hundreds

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Tens

{{ s3.t }}

Ones

{{ s3.o }}

Drag to match!

Find the real number for these crazy amounts.

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⭐

Master Builder!

You're a pro at regrouping hundreds, tens, and ones!