1. Chapter One
Lesson One

2. The diameter of Jupiter is about 88,700 miles.
Pluto can be as many as 4,500,000,000 miles from the sun.

3. Ways to Demonstrate Numbers
Standard Form: 38,093
Expanded Form: 30, ,
Word Form: thirty-eight thousand, ninety-three

4. Practice
Using the standard form, write the word form and write the value of the red digit.
1) 9,235
* Nine thousand, two hundred thirty-five
* Nine thousand
2) 25,503,400
*Twenty-five million, five hundred
three thousand, four hundred
* Five million

5. 3) 342,124,567,111
* Three hundred forty-two billion, one hundred twenty-four million, five hundred sixty-seven thousand, one hundred eleven
* 40,000,000,000
4) 18,000,036
* Eighteen million, thirty-six
* 10,000,000
5) 17,983,024,000
* Seventeen billion, nine hundred eighty-three million, twenty-four thousand
* 80,000,000

6. Write these in expanded form.
6) 7,357
* 7,
* 700, , ,
7) 761,324
8) 1,230,000
* 1,000, , ,000
* ,000
800 90
9) 30,893

7. 10) 360,080,572
Write each number in standard form.
300,000,000
60,000,000
80,000
500 2
11) 90,000, ,000,
* 95,000,307
12) Thirty billion, forty-eight million
* 30,048,000,000
13) 50,000, ,000, ,000
+ 6,
* 58,046,309

8. In the 2000 U.S. Census, Texas’s population was 20,851,820, and Wyoming’s was 493,782. Give each population after:
14) An increase of 100,000
* 20,951, and 593,782
15) A decrease of 10,000
* 20,841, and 483,782
* 1,000
16) =
17) 10,000 – 1 =
* 9,999
* 10,000
18) 10 x 10 x 10 x 10 =

9. Name the smallest digit’s place value and replace it with a zero.
3,492,568
3,490,568
490,568
90,568

10. 92,173,256
Name the smallest digit’s place value and replace it with a zero.
92,073,256
90,073,056
90,070,056
90,070,006
90,070,000

11. 971,341,874
Name the smallest digit’s place value and replace it with a zero.
970,340,874
970,040,874
970,000,870
900,000,800

12. The End