Number sense - Writing numbers in word form

​How do you write numbers up to 1,000 in word form?

​You can write numbers with digits and with words. The numbers 1-20 are shown in the table.

​To write numbers 21-99, write the tens part. Then, put a hyphen and write the ones part. Here are the tens.

​Now try it with 68.
The tens part is 60. The ones part is 8. sixty-eight
You write 68 as sixty-eight.

​To write numbers 100-999, write the hundreds part. Then write the tens part and ones part. Don't forget the hyphen.

​Let's try it with 341.
The hundreds part is 300. The tens part is 40. The ones part is 1. three hundred forty-one
You write 341 as three hundred forty-one.

​How do you write larger numbers in word form?
Use a place-value chart!
Remember that each group of three digits is called a period.

​For the digits in the thousands period or higher, use the rules you used for numbers 100-999 and then add the name of the period.
Let's try it with 29,035.

​Write the thousands period. twenty-nine thousand
Write the ones period. thirty-five
Put them together. You write 29,035 as twenty-nine thousand thirty-five.

​Let's try another example with 2,562,712.

​Write the millions period. two million
Write the thousands period. five hundred sixty-two thousand
Write the ones period. seven hundred twelve
Put it together. You write 2,562,712 as two million five hundred sixty-two thousand seven hundred twelve.