## Envision Math 5th Grade Textbook Answer Key Topic 1.1 Place Value

Review What You Know

Vocabulary

Choose the best term from the box. Question 1.
_________________________ are the symbols used to show numbers.

Question 2.
A group of 3 digits in a number is a ______________________

Question 3.
___________________ is the position of a digit in a number that is used to determine the value of the digit.

Question 4.
800 + 90 + 2

Question 5.
3,000 + 400 + 50

Question 6.
10,000 + 2,000 + 60 + 1

Question 7.
37 + 85

Question 8.
124 + 376

Comparing

Compare. Use < or >.

Question 9.
869 912

Question 10.
9,033 9,133

Question 11.
11.1,338 1,388

Question 12.
7,325 7,321

Place Value

Question 13.
Writing to Explain In the number 767, does the first 7 have the same value as the final 7? Why or why not?

Guided Practice

Do you know how?

In 1 through 3, write each number in standard form.

Question 1.
forty billion, forty-eight million

Question 2.
90,000,000,000 + 5,000,000 + 300

Question 3.
six billion, two hundred million, twelve thousand, six

Do you uderstand?

Question 4.
Look at the number in the example at the top. In what place is the digit 6? What is its value?

Question 5.
In which period does the 1 occur on the place-value chart? How does the period name help you read a large number?

Independent Practice

Write each number in word form

Question 6.
7,123

Question 7.
18,345

Question 8.
10,010,468

Question 9.
300,014,000,56

write each number in standard form.

Question 10.
8,000,000 + 300 + 9

Question 11.
60,000,000 + 10,000 + 20 + 3

Question 12.
114,000,000,000 + 70,000 + 8,000 + 7

Question 13.
50,000,000,000 + 200, 000 + 30, 000

Write each number in expanded form.

Question 14.
670,200,640

Question 15.
1,000,102,200

Question 16.
85,000,011,000

What is the value of the underlined digit in each number?

Question 17.
67,100

Question 18.
6,800,000

Problem Solving

Question 19.
The Milky Way Galaxy has at least two 20. Neptune is 4,498,252,900 km from hundred billion stars. Write this number in standard form.

Question 20.
Neptune is 4,498,252,900 km from the sun. Write this number in expanded form.

Question 21.
Janet purchased 3 T-shirts and 2 blouses. Each T-shirt cost $12 and each blouse cost$23. What was the total cost of Janet’s purchase?

Question 22.
Number Sense Write three different 10-digit numbers that have a 7 in the millions place.

Question 23.
In a recent U.S. Census, California’s population was 33,871,648. What is California’s population after
a. an increase of 100,000.
b. an increase of 1,000,000.
c. a decrease of 10,000

Question 24.
Writing to Explain For the standard form of two billion, three hundred fifty thousand, four, Danielle wrote 2,350,400,0. What error did she make? What is the correct standard form of the number? 