All the solutions provided in McGraw Hill Math Grade 3 Answer Key PDF Chapter 1 Lesson 1 Place Value Through Thousands will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 3 Answer Key Chapter 1 Lesson 1 Place Value Through Thousands
Math in My World
Example 1
The height of the Statue of Liberty from the top of the base to the top of the torch is 1,813 inches. Identify the
place of the highlighted digit in 1,813. Then write the value of the digit.
You can use 10 hundreds to show 1,000.
Model 1,813 with base-ten blocks.
Record each digit in the place value chart.
The highlighted digit, 1, is in the ____ place. Its value is ___.
Answer:
The highlighted digit is 1.
1 is in the thousands place and tens place.
The value of 1 in the thousands place is 1000.
The value of 1 in the tens place is 10.
Example 2
If ten people climb the stairs to the top of the Statue of Liberty and back down, they will have walked 7,080 steps What are the values of the zeros in the number 7,080?
When 0 is used in a number, it is a place holder. In 7,080, there are two place holders, the zero in the ____ place and the zero in the ___ place. Their values are 0.
Numbers can be written in different ways. Standard form shows only the digits. Expanded form shows the sum of the value of the digits. Word form uses words.
Answer:
When 0 is used in a number, it is a placeholder. In 7,080, there are two placeholders, the zero in the hundreds place and the zero in the one’s place. Their values are 0.
Numbers can be written in different ways. The standard form shows only the digits. The expanded form shows the sum of the value of the digits. Word form uses words.
Example 3
The distance from Mobile, Alabama to the Statue of Liberty is 1,215 miles.
Write 1,215 three ways.
Standard Form: 
Expanded Form: 1,000 + ___ + 10 + ____
Word Form: ___ thousand, ___ hundred ____
Answer:
The standard form of 1,215 is 1,215.
The expanded form of 1,215 is 1000 + 200 + 10 + 5
The word form of 1,215 is one thousand two hundred and fifteen.
Talk Math
How do I tell the value of each digit in a number?
Answer:
You tell the value of each digit in a number by using place value.
Guided Practice
Question 1.
Write 7,009 in word form.
____ thousand, ____
Answer:
The number 7,009 in the word form is seven thousand and nine.
Question 2.
Write 856 in expanded form.
____ + ____ + _____
Answer:
The expanded form of 856 is 800 + 50 + 6
Independent Practice
Write the underlined digit’s place and value.
Question 3.
501 _______
Answer:
The underlined digit is 5.
The digit place is thousand.
The value of the digit is 500.
Question 4.
5,772 _______
Answer:
The underlined digit is 2.
The digit’s place value is one.
The value of the digit is 2.
Question 5.
1,020 _______
Answer:
The underlined digit is 2.
The digit’s place value is tens.
The value of the digit is 20.
Question 6.
4,810 ____
Answer:
The underlined digit is 0.
The digit’s place value is one.
The value of the digit is 0.
Question 7.
3,176 _______
Answer:
The underlined digit is 3.
The digit’s place value is a thousand.
The value of the digit is 3000.
Question 8.
804 ____
Answer:
The underlined digit is 0.
The digit’s place value is tens.
The value of the digit is 0.
Write each number in standard form.
Question 9.
4,000 + 600 + 70 + 8 ____
Answer:
4,000 + 600 + 70 + 8 in the standard form is 4,678
Question 10.
3,000 + 20 + 1 ______
Answer:
3,000 + 20 + 1 in the standard form is 321.
Question 11.
seven thousand, six hundred forty-one ______
Answer:
seven thousand six hundred forty-one in the standard form is 7641.
Question 12.
eight thousand, seven hundred sixty _____
Answer:
Eight thousand seven hundred sixty in the standard form is 8760.
Write each number in expanded form and word form.
Question 13.
4,332 ____ + _____ + ____ + _____
______________________
Answer:
The expanded form of 4,332 is 4000 + 300 + 30 + 2.
The word form of 4,332 is four thousand three hundred and thirty-two.
Question 14.
6,503 ____ + _____ + ____ + _____
______________________
Answer:
The expanded form of 6,503 is 6000 + 500 + 0 + 3.
The word form of 6,503 is six thousand five hundred and three.
Question 15.
A motorcycle costs $3,124. What is the value of each digit?
___________
Answer:
The value of digit 3 is 3000.
The value of 1 is 100.
The value of 2 is 20.
The value of 4 is 4.
Question 16.
Write all of the three-digit numbers that have a 3 in the tens place and a 5 in the ones place.
Answer:
The above numbers have 3 in the tens place and 5 in the ones place.
Problem Solving
Question 17.
The model represents the number of days the South Pole does not have sunshine each year.
Circle the standard form of this number.
1,802 281 1,082 182
Answer:
The south pole represents 1,802.
Circle the 1,802.
Question 18.
Martin earned 7,283 points while playing a video game. Circle the correct word form of this number.
seven thousand, eight hundred twenty-three
seven thousand, two hundred eighty-three
seven thousand, two hundred thirty-eight
Answer:
HOT Problems
Question 19.
Mathematical PRACTICE 3 Find the Error Taylor is writing 2,013 in word form. Find and correct her mistake.
two hundred thirteen
_______________
_______________
Answer:
The correct answer is two thousand and thirteen.
Question 20.
? Building on the Essential Question Why does the position of each digit of a number matter?
Answer:
The position of each digit depends on the place value and the value of numbers.
McGraw Hill My Math Grade 3 Chapter 1 Lesson 1 My Homework Answer Key
Practice
Write each number in expanded form and word form.
Question 1.
2,368 2,000 + ____ + 60 + ____
two ____, three ____ sixty-eight
Answer:
The expanded form of 2,368 is 2,000 + 300 + 60 + 8
The word form of 2,368 is two thousand, three hundred and sixty-eight.
Question 2.
6,204 ____ + ____ + _____
____ thousand, ____ hundred four
Answer:
The expanded form of 6,204 is 6000 + 200 + 0 + 4
The word form of 6,204 is six thousand, two hundred and four.
Write the underlined digit’s place and value.
Question 3.
567 _______
_______
Answer:
The underlined number is 7.
7 is in the tens place.
The value of 7 is 7.
Question 4.
6,328 ______
____________
Answer:
The underlined number is 3.
3 is in the hundreds place.
The value of 3 is 300.
Question 5.
9,325 ______
____________
Answer:
The underlined number is 3.
3 is in the hundreds place.
The value of 3 is 300.
Question 6.
8,281 ______
____________
Answer:
The underlined number is 2.
8 is in the tens place.
The value of 8 is 80.
Write each number in standard form.
Question 7.
5,000 + 500 + 3 _____
Answer:
5,000 + 500 + 3 in the standard form is 5,503.
Question 8.
2,000 + 300 + 20 + 9 ______
Answer:
2,000 + 300 + 20 + 9 in the standard form is 2,329.
Question 9.
4,000 + 600 + 8 ____
Answer:
4,000 + 600 + 8 in the standard form is 4,608.
Question 10.
9,000 + 300 + 70 + 2 ____
Answer:
9,000 + 300 + 70 + 2 in the standard form is 9,372.
Problem Solving
Question 11.
Mathematical PRACTICE 2 Use Number Sense Kyle is in seat number 1,024. Sierra’s seat number has the same number of thousands and tens as Kyle’s seat number, but 2 more hundreds and 3 fewer ones than Kyle’s seat number. What is Sierra’s seat number?
Answer:
Given that,
Kyle is in seat number 1,024.
Sierra’s seat number is 2 more hundred and 3 fewer ones than Kyle’s seat number.
Therefore Sierra’s seat number is 1,221.
Vocabulary Check
Draw a line to connect each vocabulary word(s) to its definition.
Answer:
Test Practice
Question 17.
Which represents the number two thousand, eighty?
A. 280
B. 2,008
C. 2,080
D. 2,800
Answer:
The number 2,080 represents the two thousand, eighty.
Option C is the correct answer.