Suddenly, can you read the next number?
10,000
You can tell at a glance that this is 10,000.
So what about this number?
100,000,000
You counted one, ten, one hundred, right?
So that you can read such a large number at a glance
Train in this game!
* The range of questions is from 100 to 100 billion.
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Audio Material: Pocket Sound – https://pocket-se.info/