Workbook Detail
Missing Operator Add Sub Medium — Set 20
This page uses a content type that does not have a custom renderer yet. Raw structured data is shown below.
{
"contentData": {
"operation": "missing-operator",
"subject": "arithmetic",
"difficulty": "medium",
"config": {
"operations": [
"+",
"-"
],
"maxNumber": 50,
"operationPair": "add-sub",
"difficulty": "medium"
},
"problems": [
{
"id": 1,
"type": "missing-operator",
"subType": "÷",
"operand1": 35,
"operand2": 5,
"result": 7,
"question": "35 ○ 5 = 7, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 2,
"type": "missing-operator",
"subType": "-",
"operand1": 60,
"operand2": 14,
"result": 46,
"question": "60 ○ 14 = 46, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 3,
"type": "missing-operator",
"subType": "÷",
"operand1": 80,
"operand2": 8,
"result": 10,
"question": "80 ○ 8 = 10, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 4,
"type": "missing-operator",
"subType": "+",
"operand1": 48,
"operand2": 21,
"result": 69,
"question": "48 ○ 21 = 69, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "medium"
},
{
"id": 5,
"type": "missing-operator",
"subType": "+",
"operand1": 22,
"operand2": 44,
"result": 66,
"question": "22 __ 44 = 66",
"answer": "+",
"correctAnswer": "+",
"difficulty": "medium"
},
{
"id": 6,
"type": "missing-operator",
"subType": "-",
"operand1": 42,
"operand2": 28,
"result": 14,
"question": "42 ○ 28 = 14, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 7,
"type": "missing-operator",
"subType": "+",
"operand1": 44,
"operand2": 16,
"result": 60,
"question": "44 ○ 16 = 60, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "medium"
},
{
"id": 8,
"type": "missing-operator",
"subType": "-",
"operand1": 55,
"operand2": 44,
"result": 11,
"question": "55 __ 44 = 11",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 9,
"type": "missing-operator",
"subType": "-",
"operand1": 49,
"operand2": 41,
"result": 8,
"question": "49 ○ 41 = 8, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 10,
"type": "missing-operator",
"subType": "÷",
"operand1": 40,
"operand2": 5,
"result": 8,
"question": "40 __ 5 = 8",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 11,
"type": "missing-operator",
"subType": "×",
"operand1": 11,
"operand2": 11,
"result": 121,
"question": "11 ○ 11 = 121, what is ○?",
"answer": "×",
"correctAnswer": "×",
"difficulty": "medium"
},
{
"id": 12,
"type": "missing-operator",
"subType": "+",
"operand1": 27,
"operand2": 19,
"result": 46,
"question": "27 ○ 19 = 46, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "medium"
},
{
"id": 13,
"type": "missing-operator",
"subType": "÷",
"operand1": 12,
"operand2": 6,
"result": 2,
"question": "12 ○ 6 = 2, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 14,
"type": "missing-operator",
"subType": "-",
"operand1": 22,
"operand2": 20,
"result": 2,
"question": "22 ○ 20 = 2, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 15,
"type": "missing-operator",
"subType": "+",
"operand1": 17,
"operand2": 40,
"result": 57,
"question": "17 ○ 40 = 57, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "medium"
},
{
"id": 16,
"type": "missing-operator",
"subType": "-",
"operand1": 67,
"operand2": 28,
"result": 39,
"question": "67 ○ 28 = 39, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 17,
"type": "missing-operator",
"subType": "-",
"operand1": 55,
"operand2": 50,
"result": 5,
"question": "55 ○ 50 = 5, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 18,
"type": "missing-operator",
"subType": "+",
"operand1": 49,
"operand2": 48,
"result": 97,
"question": "49 __ 48 = 97",
"answer": "+",
"correctAnswer": "+",
"difficulty": "medium"
},
{
"id": 19,
"type": "missing-operator",
"subType": "÷",
"operand1": 120,
"operand2": 12,
"result": 10,
"question": "120 __ 12 = 10",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 20,
"type": "missing-operator",
"subType": "÷",
"operand1": 66,
"operand2": 11,
"result": 6,
"question": "66 __ 11 = 6",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
}
],
"layout": {
"columns": 2,
"problemsPerPage": 20
}
},
"outputTargets": {
"screen": true,
"print": true,
"pdf": true,
"answerKey": true
},
"_archetype": "form-exercise",
"_generatorId": "arithmetic-generator-v7.2.1"
}Teaching Notes
- 35 ○ 5 = 7, what is ○?
- 60 ○ 14 = 46, what is ○?
- 80 ○ 8 = 10, what is ○?
- 48 ○ 21 = 69, what is ○?
- 22 __ 44 = 66
- 42 ○ 28 = 14, what is ○?
- 44 ○ 16 = 60, what is ○?
- 55 __ 44 = 11
- 49 ○ 41 = 8, what is ○?
- 40 __ 5 = 8
- 11 ○ 11 = 121, what is ○?
- 27 ○ 19 = 46, what is ○?
- 12 ○ 6 = 2, what is ○?
- 22 ○ 20 = 2, what is ○?
- 17 ○ 40 = 57, what is ○?
- 67 ○ 28 = 39, what is ○?
- 55 ○ 50 = 5, what is ○?
- 49 __ 48 = 97
- 120 __ 12 = 10
- 66 __ 11 = 6
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