Workbook Detail
Subtraction Number Range Within 30 — Set 61
This page uses a content type that does not have a custom renderer yet. Raw structured data is shown below.
{
"contentData": {
"operation": "subtraction",
"subject": "arithmetic",
"difficulty": "medium",
"config": {
"maxNumber": 30,
"regrouping": false,
"operation": "subtraction",
"maxSum": 30
},
"problems": [
{
"id": 1,
"operand1": 18,
"operand2": 4,
"operator": "-",
"question": "18 - 4 = ___",
"answer": 14
},
{
"id": 2,
"operand1": 27,
"operand2": 21,
"operator": "-",
"question": "27 - 21 = ___",
"answer": 6
},
{
"id": 3,
"operand1": 25,
"operand2": 15,
"operator": "-",
"question": "25 - 15 = ___",
"answer": 10
},
{
"id": 4,
"operand1": 24,
"operand2": 22,
"operator": "-",
"question": "24 - 22 = ___",
"answer": 2
},
{
"id": 5,
"operand1": 16,
"operand2": 10,
"operator": "-",
"question": "16 - 10 = ___",
"answer": 6
},
{
"id": 6,
"operand1": 17,
"operand2": 7,
"operator": "-",
"question": "17 - 7 = ___",
"answer": 10
},
{
"id": 7,
"operand1": 25,
"operand2": 15,
"operator": "-",
"question": "25 - 15 = ___",
"answer": 10
},
{
"id": 8,
"operand1": 5,
"operand2": 3,
"operator": "-",
"question": "5 - 3 = ___",
"answer": 2,
"visualIntent": {
"layout": "picture-equation",
"operation": "subtract",
"items": [
{
"count": 5,
"role": "groupA"
},
{
"count": 3,
"role": "groupB"
}
],
"crossedCount": 3
}
},
{
"id": 9,
"operand1": 13,
"operand2": 1,
"operator": "-",
"question": "13 - 1 = ___",
"answer": 12
},
{
"id": 10,
"operand1": 24,
"operand2": 21,
"operator": "-",
"question": "24 - 21 = ___",
"answer": 3
},
{
"id": 11,
"operand1": 22,
"operand2": 20,
"operator": "-",
"question": "22 - 20 = ___",
"answer": 2
},
{
"id": 12,
"operand1": 25,
"operand2": 1,
"operator": "-",
"question": "25 - 1 = ___",
"answer": 24
},
{
"id": 13,
"operand1": 14,
"operand2": 12,
"operator": "-",
"question": "14 - 12 = ___",
"answer": 2
},
{
"id": 14,
"operand1": 27,
"operand2": 25,
"operator": "-",
"question": "27 - 25 = ___",
"answer": 2
},
{
"id": 15,
"operand1": 8,
"operand2": 1,
"operator": "-",
"question": "8 - 1 = ___",
"answer": 7,
"visualIntent": {
"layout": "picture-equation",
"operation": "subtract",
"items": [
{
"count": 8,
"role": "groupA"
},
{
"count": 1,
"role": "groupB"
}
],
"crossedCount": 1
}
},
{
"id": 16,
"operand1": 18,
"operand2": 3,
"operator": "-",
"question": "18 - 3 = ___",
"answer": 15
},
{
"id": 17,
"operand1": 4,
"operand2": 3,
"operator": "-",
"question": "4 - 3 = ___",
"answer": 1,
"visualIntent": {
"layout": "picture-equation",
"operation": "subtract",
"items": [
{
"count": 4,
"role": "groupA"
},
{
"count": 3,
"role": "groupB"
}
],
"crossedCount": 3
}
},
{
"id": 18,
"operand1": 11,
"operand2": 1,
"operator": "-",
"question": "11 - 1 = ___",
"answer": 10
},
{
"id": 19,
"operand1": 29,
"operand2": 7,
"operator": "-",
"question": "29 - 7 = ___",
"answer": 22
},
{
"id": 20,
"operand1": 15,
"operand2": 3,
"operator": "-",
"question": "15 - 3 = ___",
"answer": 12
}
],
"layout": {
"columns": 2,
"problemsPerPage": 20
}
},
"_archetype": "form-exercise",
"_generatorId": "arithmetic-generator-v7.2.1"
}Teaching Notes
18
-4
27
-21
25
-15
24
-22
16
-10
17
-7
25
-15
5
-3
13
-1
24
-21
22
-20
25
-1
14
-12
27
-25
8
-1
18
-3
4
-3
11
-1
29
-7
15
-3
Download this free subtraction within 30 math worksheet. Uniquely generated with an answer key — great for homework, practice, or assessment.
Features
- Printable PDF format
- Answer key included
- Multiple difficulty levels
- Classroom and home friendly
How to Use These Worksheets
- Select a within 30 set.
- Print or use on-screen.
- Check answers and practice again.
Tips
- Start with easier sets and move up gradually.
- Practice in short sessions (10–15 minutes).
- Review mistakes and redo similar problems.
Frequently Asked Questions
How do I use this Subtraction Within 30 Math Worksheet worksheet?
Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.