Workbook Detail
Mixed Operations Within 20 — Set 49
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{
"contentData": {
"operation": "mixed",
"subject": "arithmetic",
"difficulty": "medium",
"config": {
"maxNumber": 20,
"regrouping": false,
"operation": "mixed",
"operations": [
"+",
"-",
"×",
"÷"
],
"maxSum": 20
},
"problems": [
{
"id": 1,
"operand1": 3,
"operator": "-",
"operand2": 2,
"question": "3 - 2 = ___",
"answer": 1
},
{
"id": 2,
"operand1": 10,
"operator": "×",
"operand2": 1,
"question": "10 × 1 = ___",
"answer": 10
},
{
"id": 3,
"operand1": 18,
"operator": "÷",
"operand2": 2,
"question": "18 ÷ 2 = ___",
"answer": 9
},
{
"id": 4,
"operand1": 4,
"operator": "+",
"operand2": 11,
"question": "4 + 11 = ___",
"answer": 15
},
{
"id": 5,
"operand1": 12,
"operator": "-",
"operand2": 8,
"question": "12 - 8 = ___",
"answer": 4
},
{
"id": 6,
"operand1": 6,
"operator": "×",
"operand2": 1,
"question": "6 × 1 = ___",
"answer": 6
},
{
"id": 7,
"operand1": 20,
"operator": "÷",
"operand2": 4,
"question": "20 ÷ 4 = ___",
"answer": 5
},
{
"id": 8,
"operand1": 13,
"operator": "+",
"operand2": 2,
"question": "13 + 2 = ___",
"answer": 15
},
{
"id": 9,
"operand1": 2,
"operator": "-",
"operand2": 1,
"question": "2 - 1 = ___",
"answer": 1
},
{
"id": 10,
"operand1": 2,
"operator": "×",
"operand2": 1,
"question": "2 × 1 = ___",
"answer": 2
},
{
"id": 11,
"operand1": 10,
"operator": "×",
"operand2": 1,
"question": "10 × 1 = ___",
"answer": 10
},
{
"id": 12,
"operand1": 9,
"operator": "÷",
"operand2": 9,
"question": "9 ÷ 9 = ___",
"answer": 1
},
{
"id": 13,
"operand1": 1,
"operator": "+",
"operand2": 19,
"question": "1 + 19 = ___",
"answer": 20
},
{
"id": 14,
"operand1": 9,
"operator": "-",
"operand2": 8,
"question": "9 - 8 = ___",
"answer": 1
},
{
"id": 15,
"operand1": 6,
"operator": "×",
"operand2": 2,
"question": "6 × 2 = ___",
"answer": 12
},
{
"id": 16,
"operand1": 10,
"operator": "÷",
"operand2": 2,
"question": "10 ÷ 2 = ___",
"answer": 5
},
{
"id": 17,
"operand1": 10,
"operator": "+",
"operand2": 3,
"question": "10 + 3 = ___",
"answer": 13
},
{
"id": 18,
"operand1": 18,
"operator": "-",
"operand2": 8,
"question": "18 - 8 = ___",
"answer": 10
},
{
"id": 19,
"operand1": 2,
"operator": "×",
"operand2": 1,
"question": "2 × 1 = ___",
"answer": 2
},
{
"id": 20,
"operand1": 4,
"operator": "÷",
"operand2": 4,
"question": "4 ÷ 4 = ___",
"answer": 1
}
],
"layout": {
"columns": 2,
"problemsPerPage": 20
}
},
"outputTargets": {
"screen": true,
"print": true,
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"answerKey": true
},
"_archetype": "form-exercise",
"_generatorId": "arithmetic-generator-v7.2.1"
}Teaching Notes
3
-2
10
×1
18
÷2
4
+11
12
-8
6
×1
20
÷4
13
+2
2
-1
2
×1
10
×1
9
÷9
1
+19
9
-8
6
×2
10
÷2
10
+3
18
-8
2
×1
4
÷4
Download this free mixed grade 1 within 20 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 grade 1 within 20 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 Mixed Grade 1 Within 20 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.