Workbook Detail
Number Sense Patterns Missing Operator — Set 52
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"operand1": 72,
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"result": 8,
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"type": "missing-operator",
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"operand1": 36,
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"result": 4,
"question": "36 ○ 9 = 4, what is ○?",
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"type": "missing-operator",
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"operand1": 5,
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"type": "missing-operator",
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"question": "42 ○ 6 = 7, what is ○?",
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"id": 9,
"type": "missing-operator",
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"operand1": 5,
"operand2": 10,
"result": 15,
"question": "5 __ 10 = 15",
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{
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"operand1": 8,
"operand2": 10,
"result": 18,
"question": "8 __ 10 = 18",
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"operand1": 7,
"operand2": 3,
"result": 21,
"question": "7 __ 3 = 21",
"answer": "×",
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{
"id": 12,
"type": "missing-operator",
"subType": "+",
"operand1": 3,
"operand2": 5,
"result": 8,
"question": "3 __ 5 = 8",
"answer": "+",
"correctAnswer": "+",
"difficulty": "normal"
},
{
"id": 13,
"type": "missing-operator",
"subType": "-",
"operand1": 13,
"operand2": 3,
"result": 10,
"question": "13 ○ 3 = 10, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "normal"
},
{
"id": 14,
"type": "missing-operator",
"subType": "÷",
"operand1": 25,
"operand2": 5,
"result": 5,
"question": "25 __ 5 = 5",
"answer": "÷",
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"id": 15,
"type": "missing-operator",
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"operand1": 17,
"operand2": 9,
"result": 8,
"question": "17 ○ 9 = 8, what is ○?",
"answer": "-",
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"id": 16,
"type": "missing-operator",
"subType": "-",
"operand1": 7,
"operand2": 5,
"result": 2,
"question": "7 ○ 5 = 2, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "normal"
},
{
"id": 17,
"type": "missing-operator",
"subType": "×",
"operand1": 2,
"operand2": 7,
"result": 14,
"question": "2 __ 7 = 14",
"answer": "×",
"correctAnswer": "×",
"difficulty": "normal"
},
{
"id": 18,
"type": "missing-operator",
"subType": "÷",
"operand1": 90,
"operand2": 10,
"result": 9,
"question": "90 ○ 10 = 9, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
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{
"id": 19,
"type": "missing-operator",
"subType": "÷",
"operand1": 30,
"operand2": 3,
"result": 10,
"question": "30 __ 3 = 10",
"answer": "÷",
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"id": 20,
"type": "missing-operator",
"subType": "÷",
"operand1": 12,
"operand2": 6,
"result": 2,
"question": "12 ○ 6 = 2, what is ○?",
"answer": "÷",
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