Workbook Detail
Missing Operator Add Sub Easy — Set 80
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": "easy",
"config": {
"operations": [
"+",
"-"
],
"maxNumber": 50,
"operationPair": "add-sub",
"difficulty": "easy"
},
"problems": [
{
"id": 1,
"type": "missing-operator",
"subType": "×",
"operand1": 12,
"operand2": 9,
"result": 108,
"question": "12 __ 9 = 108",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 2,
"type": "missing-operator",
"subType": "-",
"operand1": 46,
"operand2": 19,
"result": 27,
"question": "46 ○ 19 = 27, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 3,
"type": "missing-operator",
"subType": "×",
"operand1": 9,
"operand2": 5,
"result": 45,
"question": "9 ○ 5 = 45, what is ○?",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 4,
"type": "missing-operator",
"subType": "×",
"operand1": 2,
"operand2": 5,
"result": 10,
"question": "2 __ 5 = 10",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 5,
"type": "missing-operator",
"subType": "×",
"operand1": 12,
"operand2": 6,
"result": 72,
"question": "12 __ 6 = 72",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 6,
"type": "missing-operator",
"subType": "+",
"operand1": 15,
"operand2": 3,
"result": 18,
"question": "15 __ 3 = 18",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 7,
"type": "missing-operator",
"subType": "+",
"operand1": 44,
"operand2": 14,
"result": 58,
"question": "44 __ 14 = 58",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 8,
"type": "missing-operator",
"subType": "-",
"operand1": 22,
"operand2": 6,
"result": 16,
"question": "22 __ 6 = 16",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 9,
"type": "missing-operator",
"subType": "-",
"operand1": 72,
"operand2": 43,
"result": 29,
"question": "72 __ 43 = 29",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 10,
"type": "missing-operator",
"subType": "+",
"operand1": 42,
"operand2": 15,
"result": 57,
"question": "42 __ 15 = 57",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 11,
"type": "missing-operator",
"subType": "×",
"operand1": 11,
"operand2": 9,
"result": 99,
"question": "11 __ 9 = 99",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 12,
"type": "missing-operator",
"subType": "×",
"operand1": 5,
"operand2": 10,
"result": 50,
"question": "5 __ 10 = 50",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 13,
"type": "missing-operator",
"subType": "×",
"operand1": 3,
"operand2": 11,
"result": 33,
"question": "3 __ 11 = 33",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 14,
"type": "missing-operator",
"subType": "-",
"operand1": 59,
"operand2": 14,
"result": 45,
"question": "59 ○ 14 = 45, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 15,
"type": "missing-operator",
"subType": "+",
"operand1": 24,
"operand2": 20,
"result": 44,
"question": "24 __ 20 = 44",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 16,
"type": "missing-operator",
"subType": "×",
"operand1": 7,
"operand2": 11,
"result": 77,
"question": "7 __ 11 = 77",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 17,
"type": "missing-operator",
"subType": "-",
"operand1": 71,
"operand2": 41,
"result": 30,
"question": "71 __ 41 = 30",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 18,
"type": "missing-operator",
"subType": "×",
"operand1": 5,
"operand2": 5,
"result": 25,
"question": "5 ○ 5 = 25, what is ○?",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 19,
"type": "missing-operator",
"subType": "+",
"operand1": 28,
"operand2": 33,
"result": 61,
"question": "28 ○ 33 = 61, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 20,
"type": "missing-operator",
"subType": "-",
"operand1": 30,
"operand2": 23,
"result": 7,
"question": "30 __ 23 = 7",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
}
],
"layout": {
"columns": 2,
"problemsPerPage": 20
}
},
"_archetype": "form-exercise",
"_generatorId": "arithmetic-generator-v7.2.1"
}Teaching Notes
- 12 __ 9 = 108
- 46 ○ 19 = 27, what is ○?
- 9 ○ 5 = 45, what is ○?
- 2 __ 5 = 10
- 12 __ 6 = 72
- 15 __ 3 = 18
- 44 __ 14 = 58
- 22 __ 6 = 16
- 72 __ 43 = 29
- 42 __ 15 = 57
- 11 __ 9 = 99
- 5 __ 10 = 50
- 3 __ 11 = 33
- 59 ○ 14 = 45, what is ○?
- 24 __ 20 = 44
- 7 __ 11 = 77
- 71 __ 41 = 30
- 5 ○ 5 = 25, what is ○?
- 28 ○ 33 = 61, what is ○?
- 30 __ 23 = 7
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