Learning to Read and Write Numbers Worksheets in Grade 1

Master reading and writing numbers through engaging worksheets: place value, number words, and expanded form through these 3 detailed exercises.

Solution: Exercises 1 to 3
1 Place Value
Exercise 1
Look at the number 73.
Circle the tens digit and underline the ones digit.
Write the number in expanded form.
Definition:

Place value: In a 2-digit number, the left digit represents TENS and the right digit represents ONES.

Place value method:
  1. Identify the tens digit (leftmost)
  2. Identify the ones digit (rightmost)
  3. Calculate the value of each digit
  4. Write in expanded form: tens × 10 + ones
Number
73
Tens
7
Ones
3
Expanded
70 + 3
Step 1: Identify the digits

In 73, the tens digit is 7 and the ones digit is 3

Step 2: Calculate the value of each digit

Tens place: 7 × 10 = 70, Ones place: 3 × 1 = 3

Step 3: Write in expanded form

73 = 70 + 3

73 has 7 tens and 3 ones
Final answer:

Tens digit: 7, Ones digit: 3
73 = 70 + 3 (7 tens and 3 ones)

Applied rules:

• Place value: Each position has a specific value (tens, ones)

• Expanded form: Shows the value of each digit

• Addition: Combine the values to get the original number

TENS PLACE
7
= 70
ONES PLACE
3
= 3
2 Number Words
Exercise 2
Fill in the missing numbers:
45 = _______ tens and _______ ones
89 = _______ tens and _______ ones
105 = _______ hundreds, _______ tens, and _______ ones
Definition:

Place value breakdown: Separating a number into its hundreds, tens, and ones components.

45
4 tens, 5 ones
89
8 tens, 9 ones
105
1 hundred, 0 tens, 5 ones
Step 1: Break down 45

45 has 4 tens (40) and 5 ones (5)

Step 2: Break down 89

89 has 8 tens (80) and 9 ones (9)

Step 3: Break down 105

105 has 1 hundred (100), 0 tens (0), and 5 ones (5)

45 = 4 tens and 5 ones
89 = 8 tens and 9 ones
105 = 1 hundred, 0 tens, and 5 ones
Final answer:

45 = 4 tens and 5 ones
89 = 8 tens and 9 ones
105 = 1 hundred, 0 tens, and 5 ones

Applied rules:

• Position matters: Hundreds are third from right, tens second from right, ones last

• Zero placeholder: Even if a place has 0, include it in the breakdown

• Counting by tens: Each ten represents 10 ones

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
3 Expanded Form
Exercise 3
Complete the worksheet:
Write 98 in expanded form.
Write the number for 60 + 4.
Write 112 in expanded form.
Definition:

Expanded form: Writing a number to show the value of each digit (hundreds + tens + ones).

98
90 + 8
60 + 4
64
112
100 + 10 + 2
Step 1: Identify each digit's place for 98

In 98: 9 is in tens place (90), 8 is in ones place (8)

Step 2: Write expanded form for 98

98 = 90 + 8 (9 tens + 8 ones)

Step 3: Convert 60 + 4 to standard form

60 + 4 = 64

Step 4: Identify each digit's place for 112

In 112: 1 is in hundreds place (100), 1 in tens place (10), 2 in ones place (2)

Step 5: Write expanded form for 112

112 = 100 + 10 + 2 (1 hundred + 1 ten + 2 ones)

98 = 90 + 8
60 + 4 = 64
112 = 100 + 10 + 2
Final answer:

98 = 90 + 8
60 + 4 = 64
112 = 100 + 10 + 2

Applied rules:

• Place value: Each position has a specific value (hundreds, tens, ones)

• Zero placeholder: Even zeros have a place value

• Standard form: Regular numeric representation

HUNDREDS
1
= 100
TENS
1
= 10
ONES
2
= 2

Complete Summary: Read and Write Numbers Worksheets

Key Concepts and Definitions

Place Value: The value of a digit based on its position in a number (ones, tens, hundreds)

Standard Form: The regular way we write numbers (like 45, 123)

Expanded Form: Showing the value of each digit (like 45 = 40 + 5)

Number Words: Writing numbers using letters (like forty-five)

Tens: Groups of ten ones (10, 20, 30, etc.)

Ones: Single units (1, 2, 3, etc.)

Hundreds: Groups of ten tens (100, 110, 120, etc.)

Core Rules and Principles

• Position Rule: Each position in a number has a specific value (rightmost = ones, next = tens, third = hundreds)

• Base-10 Rule: Our number system is based on groups of ten

• Zero Placeholder Rule: Zeros hold places even when there are no units in that position

• Hyphenation Rule: Compound numbers 21-99 use hyphens (twenty-one, thirty-five)

• Reading Rule: Read from left to right, starting with the highest place value

Step-by-Step Methods

For Place Value Identification:

  1. Look at each digit in the number
  2. Identify its position (hundreds, tens, or ones)
  3. Multiply the digit by its place value (100, 10, or 1)
  4. State how many hundreds, tens, and ones

For Expanded Form:

  1. Separate each digit with its place value
  2. Write the value of each digit (e.g., 5 in tens place = 50)
  3. Connect with addition signs
  4. Verify by adding to get the original number

For Number Words:

  1. Break the number into hundreds, tens, and ones
  2. Convert each part to words
  3. Combine with hyphens for compound numbers
  4. Remember special names for 11-19
Examples (Simple to Advanced)

Simple Examples:

• 23 = 20 + 3 (2 tens and 3 ones)

• 45 = forty-five

Intermediate Examples:

• 78 = 70 + 8 (7 tens and 8 ones)

• 91 = ninety-one

Advanced Examples:

• 104 = 100 + 0 + 4 (1 hundred, 0 tens, 4 ones)

• 117 = one hundred seventeen

Tips, Tricks, and Common Pitfalls

Tips:

• Count by tens to reach larger numbers (10, 20, 30... 100, 110, 120)

• Use base-10 blocks to visualize tens and ones

• Remember that numbers 11-19 have special names

• When writing number words, use hyphens for compound numbers

Common Mistakes:

• Confusing tens and ones digits (e.g., thinking 40 has 0 tens and 4 ones)

• Forgetting zero placeholders in expanded form (e.g., 105 = 100 + 5 instead of 100 + 0 + 5)

• Misreading "teen" numbers (confusing 14 and 40)

• Not using hyphens in compound number words

Key Notes for Memorization

• Memorize patterns: Numbers follow predictable patterns (20s, 30s, etc.)

• Remember special cases: 11-19 have unique names

• Practice regularly: Daily exposure builds fluency

• Visual associations: Connect numbers to quantities of objects

• Use mnemonics: "Tens are bigger" (tens place is worth more than ones)

Rules and Methods for Worksheets
87 = 80 + 7
Place Value
Ones
0-9
Rightmost digit
Tens
10-90
Second from right
Hundreds
100-120
Third from right
Key definitions:

Place value: The value of a digit based on its position in a number

Expanded form: Writing a number showing the value of each digit

Standard form: Regular numeric representation (123)

Complete methodology:
  1. Identify positions: Recognize hundreds, tens, and ones places
  2. Find digit values: Multiply each digit by its place value
  3. Combine values: Add the place values together
  4. Verify: Check that the expanded form equals the original number
Tip 1: Count by tens to reach numbers: 10, 20, 30... up to 120.
Tip 2: Use base-10 blocks to visualize tens and ones.
Tip 3: Remember that numbers 11-19 have special names.
Tip 4: When writing number words, use hyphens for compound numbers like twenty-one.
Common errors: Forgetting zero placeholders, misreading teen numbers, confusing tens and ones.
Worksheet strategies: Work systematically from left to right, check your work, use visual aids.
Rules to know:

• Place value order: Hundreds, Tens, Ones (from left to right)

• Number words: Hyphens connect tens and ones (thirty-two)

• Expanded form: Shows each digit's value separately

• Zero placeholder: Even if a place has 0, include it in expanded form

Worksheet Practice Patterns
120 = 100 + 20 + 0
Expanded Form
Understanding Number Patterns:

Counting sequence: Numbers increase by one from 1 to 120

Tens pattern: Every ten numbers, the tens digit increases by one

Number families: Similar patterns in numbers (20s, 30s, etc.)

Worksheet Completion Strategies:
  1. Read carefully: Understand what the worksheet is asking
  2. Work systematically: Go in order from top to bottom
  3. Check your work: Verify each answer makes sense
  4. Use tools: Counters, number lines, or base-10 blocks if needed
Pattern Recognition: Notice that numbers ending in the same digit form vertical columns on a 100 chart.
Memory Aid: Think of "teen" numbers as "ten" plus another number (thirteen = ten + three).
Visual Help: Draw groups of ten objects to represent tens.
Number Relationships: Each number is one more than the previous number.
Base-10 System: Our number system is based on groups of ten.
Important Patterns:

• Teen numbers: 11-19 (eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen)

• Ty numbers: 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120

• Compound numbers: Use hyphens (twenty-one, thirty-five, etc.)

• Hundreds: One hundred, one hundred one, one hundred two, ..., one hundred twenty

Worksheet Challenges and Solutions
113 = 100 + 10 + 3
Example Problem
Common Worksheet Types:

Type 1: Fill in place value blanks (___ tens and ___ ones)

Type 2: Convert between standard and expanded forms

Type 3: Write number words from numerals

Type 4: Match numerals to number words

Type 5: Order numbers from least to greatest

Solving Worksheet Problems:
  1. For place value problems: Identify each digit's position
  2. For expanded form: Separate each digit with its place value
  3. For number words: Break into hundreds, tens, and ones
  4. For ordering: Compare starting with the highest place value
Tip 1: Practice counting forward and backward from any number to 120.
Tip 2: Use a number line to visualize the relationship between numbers.
Tip 3: Group objects in tens to understand place value better.
Tip 4: Read number words aloud to reinforce the connection between digits and words.
Assessment Focus: Teachers often test understanding of place value and number words.
Real-world Application: These skills help with money counting and measurement.
Worksheet Success Strategies:

• Take your time: Don't rush through the problems

• Show your work: Write out expanded forms to help verify answers

• Check your answers: Add expanded forms to make sure they equal the original number

• Ask for help: When stuck, try using manipulatives or ask a teacher

Questions & Answers

Question: I sometimes get confused when I see a number like 103 and have to fill in the place value. Should I write "1 hundred, 3 tens, and 0 ones" or "1 hundred, 0 tens, and 3 ones"?

Answer: Great question! You should write "1 hundred, 0 tens, and 3 ones". Here's how to figure it out:

  • Look at the number 103 from left to right
  • The first digit (1) is in the hundreds place
  • The second digit (0) is in the tens place
  • The third digit (3) is in the ones place

Even though there are no tens in 103 (the tens digit is 0), you still need to include it in the place value breakdown because it holds the tens place. This is important for understanding the structure of our number system.

Remember: 103 = 100 + 0 + 3 = 1 hundred + 0 tens + 3 ones

Question: My child struggles with expanded form worksheets. They often forget to include the zero when there are no tens. How can I help them remember?

Answer: This is a very common challenge! Here are some helpful strategies:

  • Use base-10 blocks: Show that even when there are no tens, the tens place still exists (like having an empty box)
  • Make it visual: Draw three boxes labeled H, T, O and have them fill each box regardless of whether it's zero
  • Create a chant: "Every number needs all the places, even if they're just zeros!"
  • Practice with money: Relate to dollars ($100), dimes (tens), and pennies (ones)

You can also encourage your child to think of the zero as "nothing in this place" - it's still important because it holds the place for where the tens would be if there were any.

Example: 104 means 1 hundred, 0 tens, and 4 ones. The zero in the tens place tells us there are no groups of ten.

Question: On my worksheet, I had to write the number for "sixty-seven" but I wrote 607. Why was that wrong?

Answer: That's a good try, but there's a small misunderstanding! Let's break down "sixty-seven":

  • "Sixty" means 6 tens (which is 60)
  • "Seven" means 7 ones (which is 7)
  • Together: 60 + 7 = 67

You wrote 607, which would be "six hundred seven" - that's much larger than sixty-seven!

When you see a number word with "ty" in it (like twenty, thirty, forty, fifty, sixty), it means that many tens. So "sixty" = 6 tens = 60. Then you add the "seven" = 7 ones.

Remember: "Sixty-seven" = 67, not 607. The "ty" part tells you how many tens, not hundreds!