Workbook Detail
Missing Operator Add Sub Medium — Set 28
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{
"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": 50,
"operand2": 3,
"result": 53,
"question": "50 __ 3 = 53",
"answer": "+",
"correctAnswer": "+",
"difficulty": "medium"
},
{
"id": 2,
"type": "missing-operator",
"subType": "-",
"operand1": 52,
"operand2": 39,
"result": 13,
"question": "52 ○ 39 = 13, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 3,
"type": "missing-operator",
"subType": "+",
"operand1": 48,
"operand2": 9,
"result": 57,
"question": "48 ○ 9 = 57, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "medium"
},
{
"id": 4,
"type": "missing-operator",
"subType": "×",
"operand1": 10,
"operand2": 11,
"result": 110,
"question": "10 __ 11 = 110",
"answer": "×",
"correctAnswer": "×",
"difficulty": "medium"
},
{
"id": 5,
"type": "missing-operator",
"subType": "-",
"operand1": 39,
"operand2": 34,
"result": 5,
"question": "39 __ 34 = 5",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 6,
"type": "missing-operator",
"subType": "÷",
"operand1": 48,
"operand2": 6,
"result": 8,
"question": "48 ○ 6 = 8, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 7,
"type": "missing-operator",
"subType": "×",
"operand1": 5,
"operand2": 2,
"result": 10,
"question": "5 __ 2 = 10",
"answer": "×",
"correctAnswer": "×",
"difficulty": "medium"
},
{
"id": 8,
"type": "missing-operator",
"subType": "×",
"operand1": 3,
"operand2": 2,
"result": 6,
"question": "3 ○ 2 = 6, what is ○?",
"answer": "×",
"correctAnswer": "×",
"difficulty": "medium"
},
{
"id": 9,
"type": "missing-operator",
"subType": "-",
"operand1": 43,
"operand2": 2,
"result": 41,
"question": "43 ○ 2 = 41, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 10,
"type": "missing-operator",
"subType": "-",
"operand1": 9,
"operand2": 4,
"result": 5,
"question": "9 ○ 4 = 5, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 11,
"type": "missing-operator",
"subType": "-",
"operand1": 47,
"operand2": 29,
"result": 18,
"question": "47 ○ 29 = 18, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 12,
"type": "missing-operator",
"subType": "÷",
"operand1": 96,
"operand2": 8,
"result": 12,
"question": "96 ○ 8 = 12, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 13,
"type": "missing-operator",
"subType": "÷",
"operand1": 55,
"operand2": 5,
"result": 11,
"question": "55 __ 5 = 11",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 14,
"type": "missing-operator",
"subType": "-",
"operand1": 60,
"operand2": 47,
"result": 13,
"question": "60 ○ 47 = 13, what is ○?",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 15,
"type": "missing-operator",
"subType": "-",
"operand1": 10,
"operand2": 4,
"result": 6,
"question": "10 __ 4 = 6",
"answer": "-",
"correctAnswer": "-",
"difficulty": "medium"
},
{
"id": 16,
"type": "missing-operator",
"subType": "÷",
"operand1": 6,
"operand2": 2,
"result": 3,
"question": "6 ○ 2 = 3, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 17,
"type": "missing-operator",
"subType": "÷",
"operand1": 45,
"operand2": 9,
"result": 5,
"question": "45 ○ 9 = 5, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 18,
"type": "missing-operator",
"subType": "+",
"operand1": 16,
"operand2": 46,
"result": 62,
"question": "16 ○ 46 = 62, what is ○?",
"answer": "+",
"correctAnswer": "+",
"difficulty": "medium"
},
{
"id": 19,
"type": "missing-operator",
"subType": "÷",
"operand1": 108,
"operand2": 12,
"result": 9,
"question": "108 ○ 12 = 9, what is ○?",
"answer": "÷",
"correctAnswer": "÷",
"difficulty": "medium"
},
{
"id": 20,
"type": "missing-operator",
"subType": "×",
"operand1": 11,
"operand2": 4,
"result": 44,
"question": "11 ○ 4 = 44, what is ○?",
"answer": "×",
"correctAnswer": "×",
"difficulty": "medium"
}
],
"layout": {
"columns": 2,
"problemsPerPage": 20
}
},
"outputTargets": {
"screen": true,
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"answerKey": true
},
"_archetype": "form-exercise",
"_generatorId": "arithmetic-generator-v7.2.1"
}Teaching Notes
- 50 __ 3 = 53
- 52 ○ 39 = 13, what is ○?
- 48 ○ 9 = 57, what is ○?
- 10 __ 11 = 110
- 39 __ 34 = 5
- 48 ○ 6 = 8, what is ○?
- 5 __ 2 = 10
- 3 ○ 2 = 6, what is ○?
- 43 ○ 2 = 41, what is ○?
- 9 ○ 4 = 5, what is ○?
- 47 ○ 29 = 18, what is ○?
- 96 ○ 8 = 12, what is ○?
- 55 __ 5 = 11
- 60 ○ 47 = 13, what is ○?
- 10 __ 4 = 6
- 6 ○ 2 = 3, what is ○?
- 45 ○ 9 = 5, what is ○?
- 16 ○ 46 = 62, what is ○?
- 108 ○ 12 = 9, what is ○?
- 11 ○ 4 = 44, what is ○?
Practice missing operator add sub with free medium printable worksheets. Uniquely generated — reinforce key math skills.
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