Spring Bird Count: Numbers Three Ways

Read, write, and compare the bird counts from a statewide bird watch.

Read and write the counts

Volunteers all over the state counted birds for one weekend. Write each count in the form asked.

Volunteers counted sixty-four thousand, two hundred eight geese. Write the count as a numeral.

Geese:

The count for wild turkeys was 305,970. Fill in the missing parts of the expanded form.

305,970 = 300,000 + + 900 +

Volunteers counted 47,035 cardinals. Which shows this number in words?

A. forty-seven thousand, three hundred fiveB. forty-seven thousand, thirty-fiveC. four hundred seventy thousand, thirty-fiveD. forty-seven thousand, three hundred fifty

The count for starlings was written in expanded form. Write it as a numeral.

600,000 + 20,000 + 4,000 + 80 + 1 =

The count for chickadees was 406,030. Write the missing number words.

four hundred thousand,

Four towns sent in their gull counts. Match each count to its expanded form.

Compare the counts

Write >, <, or = in each blank to compare the two counts.

Robins: 73,419 Sparrows: 73,491

Crows: 208,500 Blue jays: 28,500

Two volunteers wrote the duck count in different ways.

500,000 + 6,000 + 70 five hundred six thousand, seventy

10.

Four parks sent in their hawk counts: 46,920, 49,620, 46,290, and 49,062. Which list shows these counts from least to greatest?

A. 46,920; 46,290; 49,062; 49,620B. 46,290; 46,920; 49,620; 49,062C. 46,290; 46,920; 49,062; 49,620D. 49,620; 49,062; 46,920; 46,290

Think it through

Use place value to decide which counts are greater.

11.

Here are six more bird counts from around the state. Circle every count that is greater than 350,000.

12.

Amara says 99,999 is greater than 100,001 because 9 is greater than 1. Explain her mistake. Which number is greater?