Workbook Detail
Missing Operator All Ops Hard — Set 64
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"operand1": 2,
"operand2": 3,
"result": 5,
"question": "2 ○ 3 = 5, what is ○?",
"answer": "+",
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{
"id": 2,
"type": "missing-operator",
"subType": "×",
"operand1": 4,
"operand2": 3,
"result": 12,
"question": "4 __ 3 = 12",
"answer": "×",
"correctAnswer": "×",
"difficulty": "hard"
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{
"id": 3,
"type": "missing-operator",
"subType": "+",
"operand1": 10,
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"result": 12,
"question": "10 ○ 2 = 12, what is ○?",
"answer": "+",
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"id": 4,
"type": "missing-operator",
"subType": "-",
"operand1": 17,
"operand2": 10,
"result": 7,
"question": "17 ○ 10 = 7, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "hard"
},
{
"id": 5,
"type": "missing-operator",
"subType": "×",
"operand1": 6,
"operand2": 4,
"result": 24,
"question": "6 __ 4 = 24",
"answer": "×",
"correctAnswer": "×",
"difficulty": "hard"
},
{
"id": 6,
"type": "missing-operator",
"subType": "÷",
"operand1": 14,
"operand2": 2,
"result": 7,
"question": "14 __ 2 = 7",
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"id": 7,
"type": "missing-operator",
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"operand1": 17,
"operand2": 10,
"result": 7,
"question": "17 __ 10 = 7",
"answer": "-",
"correctAnswer": "-",
"difficulty": "hard"
},
{
"id": 8,
"type": "missing-operator",
"subType": "+",
"operand1": 7,
"operand2": 8,
"result": 15,
"question": "7 __ 8 = 15",
"answer": "+",
"correctAnswer": "+",
"difficulty": "hard"
},
{
"id": 9,
"type": "missing-operator",
"subType": "×",
"operand1": 9,
"operand2": 3,
"result": 27,
"question": "9 __ 3 = 27",
"answer": "×",
"correctAnswer": "×",
"difficulty": "hard"
},
{
"id": 10,
"type": "missing-operator",
"subType": "+",
"operand1": 8,
"operand2": 9,
"result": 17,
"question": "8 __ 9 = 17",
"answer": "+",
"correctAnswer": "+",
"difficulty": "hard"
},
{
"id": 11,
"type": "missing-operator",
"subType": "÷",
"operand1": 21,
"operand2": 3,
"result": 7,
"question": "21 ○ 3 = 7, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "hard"
},
{
"id": 12,
"type": "missing-operator",
"subType": "÷",
"operand1": 48,
"operand2": 8,
"result": 6,
"question": "48 __ 8 = 6",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "hard"
},
{
"id": 13,
"type": "missing-operator",
"subType": "÷",
"operand1": 48,
"operand2": 8,
"result": 6,
"question": "48 ○ 8 = 6, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "hard"
},
{
"id": 14,
"type": "missing-operator",
"subType": "-",
"operand1": 14,
"operand2": 4,
"result": 10,
"question": "14 ○ 4 = 10, what is ○?",
"answer": "-",
"correctAnswer": "-",
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},
{
"id": 15,
"type": "missing-operator",
"subType": "-",
"operand1": 19,
"operand2": 9,
"result": 10,
"question": "19 ○ 9 = 10, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "hard"
},
{
"id": 16,
"type": "missing-operator",
"subType": "÷",
"operand1": 12,
"operand2": 4,
"result": 3,
"question": "12 __ 4 = 3",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "hard"
},
{
"id": 17,
"type": "missing-operator",
"subType": "÷",
"operand1": 14,
"operand2": 7,
"result": 2,
"question": "14 ○ 7 = 2, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "hard"
},
{
"id": 18,
"type": "missing-operator",
"subType": "-",
"operand1": 16,
"operand2": 8,
"result": 8,
"question": "16 ○ 8 = 8, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "hard"
},
{
"id": 19,
"type": "missing-operator",
"subType": "+",
"operand1": 2,
"operand2": 2,
"result": 4,
"question": "2 __ 2 = 4",
"answer": "+",
"correctAnswer": "+",
"difficulty": "hard"
},
{
"id": 20,
"type": "missing-operator",
"subType": "-",
"operand1": 13,
"operand2": 8,
"result": 5,
"question": "13 ○ 8 = 5, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "hard"
}
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"_archetype": "form-exercise",
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}Teaching Notes
- 2 ○ 3 = 5, what is ○?
- 4 __ 3 = 12
- 10 ○ 2 = 12, what is ○?
- 17 ○ 10 = 7, what is ○?
- 6 __ 4 = 24
- 14 __ 2 = 7
- 17 __ 10 = 7
- 7 __ 8 = 15
- 9 __ 3 = 27
- 8 __ 9 = 17
- 21 ○ 3 = 7, what is ○?
- 48 __ 8 = 6
- 48 ○ 8 = 6, what is ○?
- 14 ○ 4 = 10, what is ○?
- 19 ○ 9 = 10, what is ○?
- 12 __ 4 = 3
- 14 ○ 7 = 2, what is ○?
- 16 ○ 8 = 8, what is ○?
- 2 __ 2 = 4
- 13 ○ 8 = 5, what is ○?
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