1.1 Introduction to whole numbers  (Page 6/13)

$0,\frac{2}{3},5,8.1,125$

$0,\frac{7}{10},3,20.5,300$

$0,\frac{4}{9},3.9,50,221$

$0,\frac{3}{5},10,303,422.6$

$\mathrm{579,601}$

1. ⓐ 9
2. ⓑ 6
3. ⓒ 0
4. ⓓ 7
5. ⓔ 5

$\mathrm{398,127}$

1. ⓐ 9
2. ⓑ 3
3. ⓒ 2
4. ⓓ 8
5. ⓔ 7

$\mathrm{56,804,379}$

1. ⓐ 8
2. ⓑ 6
3. ⓒ 4
4. ⓓ 7
5. ⓔ 0

$\mathrm{78,320,465}$

1. ⓐ 8
2. ⓑ 4
3. ⓒ 2
4. ⓓ 6
5. ⓔ 7

$\mathrm{1,078}$

$\mathrm{5,902}$

$\mathrm{364,510}$

$\mathrm{146,023}$

$\mathrm{5,846,103}$

$\mathrm{1,458,398}$

$\mathrm{37,889,005}$

$\mathrm{62,008,465}$

The height of Mount Ranier is $\mathrm{14,410}$ feet.

The height of Mount Adams is $\mathrm{12,276}$ feet.

Seventy years is $\mathrm{613,200}$ hours.

One year is $\mathrm{525,600}$ minutes.

The U.S. Census estimate of the population of Miami-Dade county was $\mathrm{2,617,176}.$

The population of Chicago was $\mathrm{2,718,782}.$

There are projected to be $\mathrm{23,867,000}$ college and university students in the US in five years.

About twelve years ago there were $\mathrm{20,665,415}$ registered automobiles in California.

The population of China is expected to reach $\mathrm{1,377,583,156}$ in $2016.$

The population of India is estimated at $\mathrm{1,267,401,849}$ as of July $1,2014.$

four hundred twelve

two hundred fifty-three

thirty-five thousand, nine hundred seventy-five

sixty-one thousand, four hundred fifteen

eleven million, forty-four thousand, one hundred sixty-seven

eighteen million, one hundred two thousand, seven hundred eighty-three

three billion, two hundred twenty-six million, five hundred twelve thousand, seventeen

eleven billion, four hundred seventy-one million, thirty-six thousand, one hundred six

The population of the world was estimated to be seven billion, one hundred seventy-three million people.

The age of the solar system is estimated to be four billion, five hundred sixty-eight million years.

Lake Tahoe has a capacity of thirty-nine trillion gallons of water.

The federal government budget was three trillion, five hundred billion dollars.

Round to the nearest ten:

1. ⓐ $386$
2. ⓑ $\mathrm{2,931}$

Round to the nearest ten:

1. ⓐ $792$
2. ⓑ $\mathrm{5,647}$

Round to the nearest hundred:

1. ⓐ $\mathrm{13,748}$
2. ⓑ $\mathrm{391,794}$

Round to the nearest hundred:

1. ⓐ $\mathrm{28,166}$
2. ⓑ $\mathrm{481,628}$

Round to the nearest ten:

1. ⓐ $\mathrm{1,492}$
2. ⓑ $\mathrm{1,497}$

Round to the nearest thousand:

1. ⓐ $\mathrm{2,391}$
2. ⓑ $\mathrm{2,795}$

Round to the nearest hundred:

1. ⓐ $\mathrm{63,994}$
2. ⓑ $\mathrm{63,949}$

Round to the nearest thousand:

1. ⓐ $\mathrm{163,584}$
2. ⓑ $\mathrm{163,246}$

Writing a Check Jorge bought a car for $\text{\$24,493}.$ He paid for the car with a check. Write the purchase price in words.

Writing a Check Marissa’s kitchen remodeling cost $\text{\$18,549}.$ She wrote a check to the contractor. Write the amount paid in words.

Buying a Car Jorge bought a car for $\text{\$24,493}.$ Round the price to the nearest:

1. ⓐ ten dollars
2. ⓑ hundred dollars
3. ⓒ thousand dollars
4. ⓓ ten-thousand dollars

Remodeling a Kitchen Marissa’s kitchen remodeling cost $\text{\$18,549}.$ Round the cost to the nearest:

1. ⓐ ten dollars
2. ⓑ hundred dollars
3. ⓒ thousand dollars
4. ⓓ ten-thousand dollars

Population The population of China was $\mathrm{1,355,692,544}$ in $2014.$ Round the population to the nearest:

1. ⓐ billion people
2. ⓑ hundred-million people
3. ⓒ million people

Astronomy The average distance between Earth and the sun is $\mathrm{149,597,888}$ kilometers. Round the distance to the nearest:

1. ⓐ hundred-million kilometers
2. ⓑ ten-million kilometers
3. ⓒ million kilometers

In your own words, explain the difference between the counting numbers and the whole numbers.

Give an example from your everyday life where it helps to round numbers.