Workbook Detail
Missing Operator Add Sub Easy — Set 37
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{
"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": 3,
"operand2": 9,
"result": 27,
"question": "3 ○ 9 = 27, what is ○?",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 2,
"type": "missing-operator",
"subType": "-",
"operand1": 24,
"operand2": 13,
"result": 11,
"question": "24 ○ 13 = 11, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 3,
"type": "missing-operator",
"subType": "×",
"operand1": 8,
"operand2": 8,
"result": 64,
"question": "8 ○ 8 = 64, what is ○?",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 4,
"type": "missing-operator",
"subType": "-",
"operand1": 46,
"operand2": 2,
"result": 44,
"question": "46 __ 2 = 44",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 5,
"type": "missing-operator",
"subType": "×",
"operand1": 4,
"operand2": 9,
"result": 36,
"question": "4 __ 9 = 36",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 6,
"type": "missing-operator",
"subType": "+",
"operand1": 26,
"operand2": 7,
"result": 33,
"question": "26 __ 7 = 33",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 7,
"type": "missing-operator",
"subType": "+",
"operand1": 26,
"operand2": 29,
"result": 55,
"question": "26 ○ 29 = 55, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 8,
"type": "missing-operator",
"subType": "+",
"operand1": 20,
"operand2": 15,
"result": 35,
"question": "20 __ 15 = 35",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 9,
"type": "missing-operator",
"subType": "×",
"operand1": 4,
"operand2": 3,
"result": 12,
"question": "4 __ 3 = 12",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 10,
"type": "missing-operator",
"subType": "×",
"operand1": 7,
"operand2": 3,
"result": 21,
"question": "7 __ 3 = 21",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 11,
"type": "missing-operator",
"subType": "+",
"operand1": 31,
"operand2": 4,
"result": 35,
"question": "31 ○ 4 = 35, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 12,
"type": "missing-operator",
"subType": "-",
"operand1": 51,
"operand2": 49,
"result": 2,
"question": "51 __ 49 = 2",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 13,
"type": "missing-operator",
"subType": "+",
"operand1": 34,
"operand2": 26,
"result": 60,
"question": "34 ○ 26 = 60, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 14,
"type": "missing-operator",
"subType": "+",
"operand1": 35,
"operand2": 23,
"result": 58,
"question": "35 ○ 23 = 58, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
},
{
"id": 15,
"type": "missing-operator",
"subType": "-",
"operand1": 46,
"operand2": 34,
"result": 12,
"question": "46 ○ 34 = 12, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 16,
"type": "missing-operator",
"subType": "×",
"operand1": 12,
"operand2": 6,
"result": 72,
"question": "12 ○ 6 = 72, what is ○?",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 17,
"type": "missing-operator",
"subType": "×",
"operand1": 2,
"operand2": 2,
"result": 4,
"question": "2 __ 2 = 4",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 18,
"type": "missing-operator",
"subType": "×",
"operand1": 5,
"operand2": 9,
"result": 45,
"question": "5 __ 9 = 45",
"answer": "×",
"correctAnswer": "×",
"difficulty": "easy"
},
{
"id": 19,
"type": "missing-operator",
"subType": "-",
"operand1": 5,
"operand2": 2,
"result": 3,
"question": "5 ○ 2 = 3, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "easy"
},
{
"id": 20,
"type": "missing-operator",
"subType": "+",
"operand1": 9,
"operand2": 40,
"result": 49,
"question": "9 __ 40 = 49",
"answer": "+",
"correctAnswer": "+",
"difficulty": "easy"
}
],
"layout": {
"columns": 2,
"problemsPerPage": 20
}
},
"_archetype": "form-exercise",
"_generatorId": "arithmetic-generator-v7.2.1"
}Teaching Notes
- 3 ○ 9 = 27, what is ○?
- 24 ○ 13 = 11, what is ○?
- 8 ○ 8 = 64, what is ○?
- 46 __ 2 = 44
- 4 __ 9 = 36
- 26 __ 7 = 33
- 26 ○ 29 = 55, what is ○?
- 20 __ 15 = 35
- 4 __ 3 = 12
- 7 __ 3 = 21
- 31 ○ 4 = 35, what is ○?
- 51 __ 49 = 2
- 34 ○ 26 = 60, what is ○?
- 35 ○ 23 = 58, what is ○?
- 46 ○ 34 = 12, what is ○?
- 12 ○ 6 = 72, what is ○?
- 2 __ 2 = 4
- 5 __ 9 = 45
- 5 ○ 2 = 3, what is ○?
- 9 __ 40 = 49
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