Translating Numbers from Word Form to Standard Form

What is the standard form of the number 'seven hundred twelve'?

• 172

• 702

• 721

• 712

Where should commas be placed in the number 1,234,567?

• After every four digits

• After every two digits

• After every digit

• After every three digits from the right

In the number 67,409, what does the '67' represent?

• Sixty-seven thousands

• Sixty-seven tens

• Sixty-seven ones

• Sixty-seven hundreds

If a number is written as 'three hundred seventy-one', what is its standard form?

• 137

• 317

• 371

• 713

In the number 20,000, why is there a zero in the thousandths place?

• Because it represents hundreds

• Because it is a mistake

• Because it represents ten thousand

• Because it is a placeholder for unmentioned digits