Lesson 4.1: Reading, Writing, and Representing Numbers up to 10,000
Read standard numerals, write number names in words, and represent 4-digit numbers with base-ten blocks and abacus counters.
⏱️ Reading Time: 15 mins
• ❓ 50 Interactive Practice Questions
🌟
Real-Life Story: Numbers up to 10,000
A national park ranger counts the migratory bird population arriving at the wetland sanctuary. The digital tally counter reads 4,825. In the annual conservation registry, she records the number in words as 'Four thousand, eight hundred twenty-five.'
💡 Core Mathematical Concepts: Reading & Representing 4-Digit Numbers
Focus areas: Thousands, hundreds, tens, ones, numerals, word names, base-ten models.
| Concept / Term | Mathematical Definition | Everyday Example |
|---|---|---|
| Thousands Place | The fourth digit from the right; represents groups of 1,000 (10 hundreds) | In 4,825, the digit 4 has a value of 4,000 |
| Number Names in Words | Writing numbers using proper hyphenation for two-digit numbers (twenty-five) | 6,342 = Six thousand, three hundred forty-two |
| Base-Ten Thousand Cube | A large block composed of 1,000 unit cubes, 100 rods of ten, or 10 flat hundred squares | 4 large cubes = 4,000 |
| Zero as a Place Holder | When a place value has no value, 0 preserves the position of other digits | 5,072 has 0 hundreds; without 0 it reads 572! |
🔍 Practical Classroom & Everyday Examples
Example 1: Comma Separation in 4-Digit Numbers
A comma is placed between the thousands and hundreds digit (e.g., 7,450) to make reading effortless.
Example 2: Translating Word Names to Numerals
Check each place value box (Th, H, T, O). If a word name skips 'hundred', put a 0 in the hundreds column (e.g., 'Three thousand forty' = 3,040).
⚠️ Watch Out! Common Mistakes to Avoid
Common Error: Omitting zero placeholders
Correction: Writing 'Five thousand six' as 56 instead of 5,006.
Common Error: Misreading 10,000
Correction: 10,000 is 10 thousands, composed of 5 digits: 1 followed by four zeroes.
🎯 Quick Self-Check Challenge
Write the numeral for: 'Seven thousand, sixty-four'. Which place value contains a zero?
Answer & Explanation:
The numeral is 7,064. The hundreds place contains a zero because there are no hundreds mentioned.
🎯 Key Learning Takeaways
Master Numbers up to 10,000 fundamentals.
📄 Printable Worksheets (5 Available)
Download ready-to-print PDFs for offline student practice with separate parent/teacher answer keys.
G3-M-CH04-WS05
A4 • 15 Qs
Numbers up to 10,000 — Worksheet 5
4-Digit Numerals, Expanded Notation & Word Forms (Aviation Airport Flights Log)
G3-M-CH04-WS04
A4 • 15 Qs
Numbers up to 10,000 — Worksheet 4
4-Digit Numerals, Expanded Notation & Word Forms (Science Museum Ticket Sales)
G3-M-CH04-WS03
A4 • 15 Qs
Numbers up to 10,000 — Worksheet 3
4-Digit Numerals, Expanded Notation & Word Forms (Wildlife Reserve Elephant Census)
G3-M-CH04-WS02
A4 • 15 Qs
Numbers up to 10,000 — Worksheet 2
4-Digit Numerals, Expanded Notation & Word Forms (City Central Library Catalog)
G3-M-CH04-WS01
A4 • 15 Qs
Numbers up to 10,000 — Worksheet 1
4-Digit Numerals, Expanded Notation & Word Forms (Grand Stadium Attendance)
✍️ Lesson Practice Questions (50 Questions)
Solve these real-world challenges online, test your understanding, and reveal instant step-by-step explanations.
1
Short Answer
Hard
2 Marks
I am a 4-digit number. My thousands digit is 6. My hundreds digit is half my thousands digit. My tens digit is 0. My ones digit is 3 more than my tens digit. What number am I?
A
6,303
B
6,330
C
6,203
D
6,306
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
6,303
Step-by-Step Explanation:
Thousands = 6. Hundreds = 6 ÷ 2 = 3. Tens = 0. Ones = 0 + 3 = 3. The number is 6,303.
2
Short Answer
Hard
2 Marks
Using each of the four digits [7, 2, 9, 4] exactly once, what is the largest possible 4-digit number you can create?
A
9,742
B
9,724
C
9,472
D
7,942
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
9,742
Step-by-Step Explanation:
To make the largest number, place the largest digits in the highest place value: 9 in thousands, 7 in hundreds, 4 in tens, 2 in ones = 9,742.
3
Short Answer
Hard
2 Marks
How many hundreds are equal in total value to one thousand (1,000)?
A
10 hundreds
B
100 hundreds
C
1 hundred
D
20 hundreds
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
10 hundreds
Step-by-Step Explanation:
10 × 100 = 1,000. Exactly 10 hundreds equal one thousand.
4
Short Answer
Hard
2 Marks
Why is the digit 0 essential when writing numbers like 5,023 in the standard base-ten system?
A
Zero acts as a placeholder to keep the 5 in the thousands place; without 0, the number would read 523 (five hundred twenty-three)
B
Zero makes numbers look neater
C
Zero has no mathematical purpose
D
Zero can be replaced by any symbol
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Zero acts as a placeholder to keep the 5 in the thousands place; without 0, the number would read 523 (five hundred twenty-three)
Step-by-Step Explanation:
In a positional numeral system, zeroes maintain correct column positions for all other digits.
5
Short Answer
Medium
1 Mark
Zack writes: '4,520 in expanded form is 4 + 5 + 2 + 0.' Why is this incorrect?
A
Expanded form represents the value of each digit based on its position (4,000 + 500 + 20), not the sum of its single digits
B
Zack forgot to multiply by 10
C
4,520 cannot be expanded
D
The sum should equal 100
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Expanded form represents the value of each digit based on its position (4,000 + 500 + 20), not the sum of its single digits
Step-by-Step Explanation:
Expanded form sums place values: 4,000 + 500 + 20, not single-digit face values.
6
Short Answer
Medium
1 Mark
A student writes the numeral for 'Eight thousand four' as 804. What is the mistake?
A
The student omitted the zero in the tens place; eight thousand four is a 4-digit number (8,004), while 804 is eight hundred four
B
804 is correct
C
Eight thousand four should be 8,400
D
Eight thousand four should be 80,004
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
The student omitted the zero in the tens place; eight thousand four is a 4-digit number (8,004), while 804 is eight hundred four
Step-by-Step Explanation:
8,004 requires zeroes in both the hundreds and tens places.
7
Fill in the Blanks
Medium
1 Mark
What number is represented by: 5 thousands + 18 tens + 4 ones?
A
5,184
B
5,180
C
5,804
D
5,984
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5,184
Step-by-Step Explanation:
5,000 + (18 × 10 = 180) + 4 = 5,184.
8
Fill in the Blanks
Medium
1 Mark
Find the missing addend in expanded form: 8164 = 8000 + [ ? ] + 60 + 4
A
100
B
10
C
1
D
1000
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
100
Step-by-Step Explanation:
The hundreds place is 1, which has a value of 100.
9
Short Answer
Medium
1 Mark
A bookstore has 2,400 fiction books and 1,800 non-fiction books. What is the combined total number of books?
A
4,200 books
B
4,100 books
C
3,200 books
D
4,300 books
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
4,200 books
Step-by-Step Explanation:
2,400 + 1,800 = 4,200 books.
10
Short Answer
Medium
1 Mark
A charity collected 3,000 one-dollar coins on Monday, 400 on Tuesday, and 50 on Wednesday. What is the total dollar amount collected?
A
$3,450
B
$3,405
C
$3,540
D
$345
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
$3,450
Step-by-Step Explanation:
$3,000 + $400 + $50 = $3,450.
11
Short Answer
Medium
1 Mark
At the Aviation Airport Flights Log, an event organizer logs 8164 attendees. How is this number written in standard words?
A
8 thousand, 1 hundred and 64
B
8 hundred and 164
C
80 thousand
D
Ten thousand
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
8 thousand, 1 hundred and 64
Step-by-Step Explanation:
Spelled out: 8 thousand, 1 hundred and 64.
12
Multiple Choice
Easy
1 Mark
Which number has a 7 in the thousands place and a 4 in the tens place?
A
7,245
B
4,725
C
2,745
D
7,420
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
7,245
Step-by-Step Explanation:
In 7,245, 7 is in the thousands place and 4 is in the tens place.
13
Multiple Choice
Easy
1 Mark
What number is 1,000 more than 4,520?
A
5,520
B
4,620
C
5,620
D
4,530
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5,520
Step-by-Step Explanation:
4,520 + 1,000 = 5,520 (thousands digit increases by 1).
14
Multiple Choice
Easy
1 Mark
Write 8164 in correct expanded form:
A
8000 + 100 + 60 + 4
B
8 + 1 + 6 + 4
C
800 + 10 + 60 + 4
D
8000 + 10 + 4
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
8000 + 100 + 60 + 4
Step-by-Step Explanation:
8164 decomposes into 8000 + 100 + 60 + 4.
15
Multiple Choice
Easy
1 Mark
What is the standard numeral for: '8 thousands, 1 hundreds, 6 tens, and 4 ones'?
A
8164
B
8064
C
8174
D
8614
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
8164
Step-by-Step Explanation:
8×1000 + 1×100 + 6×10 + 4 = 8164.
16
Short Answer
Hard
2 Marks
I am a 4-digit number. My thousands digit is 6. My hundreds digit is half my thousands digit. My tens digit is 0. My ones digit is 3 more than my tens digit. What number am I?
A
6,303
B
6,330
C
6,203
D
6,306
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
6,303
Step-by-Step Explanation:
Thousands = 6. Hundreds = 6 ÷ 2 = 3. Tens = 0. Ones = 0 + 3 = 3. The number is 6,303.
17
Short Answer
Hard
2 Marks
Using each of the four digits [7, 2, 9, 4] exactly once, what is the largest possible 4-digit number you can create?
A
9,742
B
9,724
C
9,472
D
7,942
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
9,742
Step-by-Step Explanation:
To make the largest number, place the largest digits in the highest place value: 9 in thousands, 7 in hundreds, 4 in tens, 2 in ones = 9,742.
18
Short Answer
Hard
2 Marks
How many hundreds are equal in total value to one thousand (1,000)?
A
10 hundreds
B
100 hundreds
C
1 hundred
D
20 hundreds
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
10 hundreds
Step-by-Step Explanation:
10 × 100 = 1,000. Exactly 10 hundreds equal one thousand.
19
Short Answer
Hard
2 Marks
Why is the digit 0 essential when writing numbers like 5,023 in the standard base-ten system?
A
Zero acts as a placeholder to keep the 5 in the thousands place; without 0, the number would read 523 (five hundred twenty-three)
B
Zero makes numbers look neater
C
Zero has no mathematical purpose
D
Zero can be replaced by any symbol
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Zero acts as a placeholder to keep the 5 in the thousands place; without 0, the number would read 523 (five hundred twenty-three)
Step-by-Step Explanation:
In a positional numeral system, zeroes maintain correct column positions for all other digits.
20
Short Answer
Medium
1 Mark
Zack writes: '4,520 in expanded form is 4 + 5 + 2 + 0.' Why is this incorrect?
A
Expanded form represents the value of each digit based on its position (4,000 + 500 + 20), not the sum of its single digits
B
Zack forgot to multiply by 10
C
4,520 cannot be expanded
D
The sum should equal 100
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Expanded form represents the value of each digit based on its position (4,000 + 500 + 20), not the sum of its single digits
Step-by-Step Explanation:
Expanded form sums place values: 4,000 + 500 + 20, not single-digit face values.
21
Short Answer
Medium
1 Mark
A student writes the numeral for 'Eight thousand four' as 804. What is the mistake?
A
The student omitted the zero in the tens place; eight thousand four is a 4-digit number (8,004), while 804 is eight hundred four
B
804 is correct
C
Eight thousand four should be 8,400
D
Eight thousand four should be 80,004
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
The student omitted the zero in the tens place; eight thousand four is a 4-digit number (8,004), while 804 is eight hundred four
Step-by-Step Explanation:
8,004 requires zeroes in both the hundreds and tens places.
22
Fill in the Blanks
Medium
1 Mark
What number is represented by: 5 thousands + 18 tens + 4 ones?
A
5,184
B
5,180
C
5,804
D
5,984
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5,184
Step-by-Step Explanation:
5,000 + (18 × 10 = 180) + 4 = 5,184.
23
Fill in the Blanks
Medium
1 Mark
Find the missing addend in expanded form: 5493 = 5000 + [ ? ] + 90 + 3
A
400
B
40
C
4
D
4000
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
400
Step-by-Step Explanation:
The hundreds place is 4, which has a value of 400.
24
Short Answer
Medium
1 Mark
A bookstore has 2,400 fiction books and 1,800 non-fiction books. What is the combined total number of books?
A
4,200 books
B
4,100 books
C
3,200 books
D
4,300 books
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
4,200 books
Step-by-Step Explanation:
2,400 + 1,800 = 4,200 books.
25
Short Answer
Medium
1 Mark
A charity collected 3,000 one-dollar coins on Monday, 400 on Tuesday, and 50 on Wednesday. What is the total dollar amount collected?
A
$3,450
B
$3,405
C
$3,540
D
$345
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
$3,450
Step-by-Step Explanation:
$3,000 + $400 + $50 = $3,450.
26
Short Answer
Medium
1 Mark
At the Science Museum Ticket Sales, an event organizer logs 5493 attendees. How is this number written in standard words?
A
5 thousand, 4 hundred and 93
B
5 hundred and 493
C
50 thousand
D
Ten thousand
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5 thousand, 4 hundred and 93
Step-by-Step Explanation:
Spelled out: 5 thousand, 4 hundred and 93.
27
Multiple Choice
Easy
1 Mark
Which number has a 7 in the thousands place and a 4 in the tens place?
A
7,245
B
4,725
C
2,745
D
7,420
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
7,245
Step-by-Step Explanation:
In 7,245, 7 is in the thousands place and 4 is in the tens place.
28
Multiple Choice
Easy
1 Mark
What number is 1,000 more than 4,520?
A
5,520
B
4,620
C
5,620
D
4,530
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5,520
Step-by-Step Explanation:
4,520 + 1,000 = 5,520 (thousands digit increases by 1).
29
Multiple Choice
Easy
1 Mark
Write 5493 in correct expanded form:
A
5000 + 400 + 90 + 3
B
5 + 4 + 9 + 3
C
500 + 40 + 90 + 3
D
5000 + 40 + 3
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5000 + 400 + 90 + 3
Step-by-Step Explanation:
5493 decomposes into 5000 + 400 + 90 + 3.
30
Multiple Choice
Easy
1 Mark
What is the standard numeral for: '5 thousands, 4 hundreds, 9 tens, and 3 ones'?
A
5493
B
5393
C
5503
D
5943
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5493
Step-by-Step Explanation:
5×1000 + 4×100 + 9×10 + 3 = 5493.
31
Short Answer
Hard
2 Marks
I am a 4-digit number. My thousands digit is 6. My hundreds digit is half my thousands digit. My tens digit is 0. My ones digit is 3 more than my tens digit. What number am I?
A
6,303
B
6,330
C
6,203
D
6,306
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
6,303
Step-by-Step Explanation:
Thousands = 6. Hundreds = 6 ÷ 2 = 3. Tens = 0. Ones = 0 + 3 = 3. The number is 6,303.
32
Short Answer
Hard
2 Marks
Using each of the four digits [7, 2, 9, 4] exactly once, what is the largest possible 4-digit number you can create?
A
9,742
B
9,724
C
9,472
D
7,942
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
9,742
Step-by-Step Explanation:
To make the largest number, place the largest digits in the highest place value: 9 in thousands, 7 in hundreds, 4 in tens, 2 in ones = 9,742.
33
Short Answer
Hard
2 Marks
How many hundreds are equal in total value to one thousand (1,000)?
A
10 hundreds
B
100 hundreds
C
1 hundred
D
20 hundreds
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
10 hundreds
Step-by-Step Explanation:
10 × 100 = 1,000. Exactly 10 hundreds equal one thousand.
34
Short Answer
Hard
2 Marks
Why is the digit 0 essential when writing numbers like 5,023 in the standard base-ten system?
A
Zero acts as a placeholder to keep the 5 in the thousands place; without 0, the number would read 523 (five hundred twenty-three)
B
Zero makes numbers look neater
C
Zero has no mathematical purpose
D
Zero can be replaced by any symbol
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Zero acts as a placeholder to keep the 5 in the thousands place; without 0, the number would read 523 (five hundred twenty-three)
Step-by-Step Explanation:
In a positional numeral system, zeroes maintain correct column positions for all other digits.
35
Short Answer
Medium
1 Mark
Zack writes: '4,520 in expanded form is 4 + 5 + 2 + 0.' Why is this incorrect?
A
Expanded form represents the value of each digit based on its position (4,000 + 500 + 20), not the sum of its single digits
B
Zack forgot to multiply by 10
C
4,520 cannot be expanded
D
The sum should equal 100
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Expanded form represents the value of each digit based on its position (4,000 + 500 + 20), not the sum of its single digits
Step-by-Step Explanation:
Expanded form sums place values: 4,000 + 500 + 20, not single-digit face values.
36
Short Answer
Medium
1 Mark
A student writes the numeral for 'Eight thousand four' as 804. What is the mistake?
A
The student omitted the zero in the tens place; eight thousand four is a 4-digit number (8,004), while 804 is eight hundred four
B
804 is correct
C
Eight thousand four should be 8,400
D
Eight thousand four should be 80,004
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
The student omitted the zero in the tens place; eight thousand four is a 4-digit number (8,004), while 804 is eight hundred four
Step-by-Step Explanation:
8,004 requires zeroes in both the hundreds and tens places.
37
Fill in the Blanks
Medium
1 Mark
What number is represented by: 5 thousands + 18 tens + 4 ones?
A
5,184
B
5,180
C
5,804
D
5,984
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5,184
Step-by-Step Explanation:
5,000 + (18 × 10 = 180) + 4 = 5,184.
38
Fill in the Blanks
Medium
1 Mark
Find the missing addend in expanded form: 2841 = 2000 + [ ? ] + 40 + 1
A
800
B
80
C
8
D
8000
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
800
Step-by-Step Explanation:
The hundreds place is 8, which has a value of 800.
39
Short Answer
Medium
1 Mark
A bookstore has 2,400 fiction books and 1,800 non-fiction books. What is the combined total number of books?
A
4,200 books
B
4,100 books
C
3,200 books
D
4,300 books
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
4,200 books
Step-by-Step Explanation:
2,400 + 1,800 = 4,200 books.
40
Short Answer
Medium
1 Mark
A charity collected 3,000 one-dollar coins on Monday, 400 on Tuesday, and 50 on Wednesday. What is the total dollar amount collected?
A
$3,450
B
$3,405
C
$3,540
D
$345
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
$3,450
Step-by-Step Explanation:
$3,000 + $400 + $50 = $3,450.
41
Short Answer
Medium
1 Mark
At the Wildlife Reserve Elephant Census, an event organizer logs 2841 attendees. How is this number written in standard words?
A
2 thousand, 8 hundred and 41
B
2 hundred and 841
C
20 thousand
D
Ten thousand
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
2 thousand, 8 hundred and 41
Step-by-Step Explanation:
Spelled out: 2 thousand, 8 hundred and 41.
42
Multiple Choice
Easy
1 Mark
Which number has a 7 in the thousands place and a 4 in the tens place?
A
7,245
B
4,725
C
2,745
D
7,420
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
7,245
Step-by-Step Explanation:
In 7,245, 7 is in the thousands place and 4 is in the tens place.
43
Multiple Choice
Easy
1 Mark
What number is 1,000 more than 4,520?
A
5,520
B
4,620
C
5,620
D
4,530
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5,520
Step-by-Step Explanation:
4,520 + 1,000 = 5,520 (thousands digit increases by 1).
44
Multiple Choice
Easy
1 Mark
Write 2841 in correct expanded form:
A
2000 + 800 + 40 + 1
B
2 + 8 + 4 + 1
C
200 + 80 + 40 + 1
D
2000 + 80 + 1
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
2000 + 800 + 40 + 1
Step-by-Step Explanation:
2841 decomposes into 2000 + 800 + 40 + 1.
45
Multiple Choice
Easy
1 Mark
What is the standard numeral for: '2 thousands, 8 hundreds, 4 tens, and 1 ones'?
A
2841
B
2741
C
2851
D
2481
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
2841
Step-by-Step Explanation:
2×1000 + 8×100 + 4×10 + 1 = 2841.
46
Short Answer
Hard
2 Marks
I am a 4-digit number. My thousands digit is 6. My hundreds digit is half my thousands digit. My tens digit is 0. My ones digit is 3 more than my tens digit. What number am I?
A
6,303
B
6,330
C
6,203
D
6,306
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
6,303
Step-by-Step Explanation:
Thousands = 6. Hundreds = 6 ÷ 2 = 3. Tens = 0. Ones = 0 + 3 = 3. The number is 6,303.
47
Short Answer
Hard
2 Marks
Using each of the four digits [7, 2, 9, 4] exactly once, what is the largest possible 4-digit number you can create?
A
9,742
B
9,724
C
9,472
D
7,942
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
9,742
Step-by-Step Explanation:
To make the largest number, place the largest digits in the highest place value: 9 in thousands, 7 in hundreds, 4 in tens, 2 in ones = 9,742.
48
Short Answer
Hard
2 Marks
How many hundreds are equal in total value to one thousand (1,000)?
A
10 hundreds
B
100 hundreds
C
1 hundred
D
20 hundreds
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
10 hundreds
Step-by-Step Explanation:
10 × 100 = 1,000. Exactly 10 hundreds equal one thousand.
49
Short Answer
Hard
2 Marks
Why is the digit 0 essential when writing numbers like 5,023 in the standard base-ten system?
A
Zero acts as a placeholder to keep the 5 in the thousands place; without 0, the number would read 523 (five hundred twenty-three)
B
Zero makes numbers look neater
C
Zero has no mathematical purpose
D
Zero can be replaced by any symbol
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Zero acts as a placeholder to keep the 5 in the thousands place; without 0, the number would read 523 (five hundred twenty-three)
Step-by-Step Explanation:
In a positional numeral system, zeroes maintain correct column positions for all other digits.
50
Short Answer
Medium
1 Mark
Zack writes: '4,520 in expanded form is 4 + 5 + 2 + 0.' Why is this incorrect?
A
Expanded form represents the value of each digit based on its position (4,000 + 500 + 20), not the sum of its single digits
B
Zack forgot to multiply by 10
C
4,520 cannot be expanded
D
The sum should equal 100
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Expanded form represents the value of each digit based on its position (4,000 + 500 + 20), not the sum of its single digits
Step-by-Step Explanation:
Expanded form sums place values: 4,000 + 500 + 20, not single-digit face values.