Number Chain Mixed Medium — Set 22

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        "subject": "arithmetic",
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                "subType": "number-chain",
                "start": 3,
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                    {
                        "op": "+",
                        "operand": 9
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                    {
                        "op": "+",
                        "operand": 5
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                        "op": "x",
                        "operand": 3
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                "answer": 37,
                "question": "Number Chain: 3 → +9 → +5 → x3 → -14 → ?",
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            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 8,
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                        "operand": 3
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                        "op": "+",
                        "operand": 6
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                    {
                        "op": "x",
                        "operand": 2
                    },
                    {
                        "op": "-",
                        "operand": 12
                    }
                ],
                "answer": 22,
                "question": "Number Chain: 8 → +3 → +6 → x2 → -12 → ?",
                "difficulty": "medium"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 1,
                "steps": [
                    {
                        "op": "-",
                        "operand": 1
                    },
                    {
                        "op": "+",
                        "operand": 8
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                    {
                        "op": "+",
                        "operand": 10
                    },
                    {
                        "op": "x",
                        "operand": 3
                    }
                ],
                "answer": 54,
                "question": "Number Chain: 1 → -1 → +8 → +10 → x3 → ?",
                "difficulty": "medium"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 2,
                "steps": [
                    {
                        "op": "x",
                        "operand": 3
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                    {
                        "op": "+",
                        "operand": 6
                    },
                    {
                        "op": "+",
                        "operand": 7
                    },
                    {
                        "op": "x",
                        "operand": 3
                    }
                ],
                "answer": 57,
                "question": "Number Chain: 2 → x3 → +6 → +7 → x3 → ?",
                "difficulty": "medium"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 4,
                "steps": [
                    {
                        "op": "+",
                        "operand": 8
                    },
                    {
                        "op": "+",
                        "operand": 1
                    },
                    {
                        "op": "-",
                        "operand": 6
                    },
                    {
                        "op": "+",
                        "operand": 10
                    }
                ],
                "answer": 17,
                "question": "Number Chain: 4 → +8 → +1 → -6 → +10 → ?",
                "difficulty": "medium"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 6,
                "steps": [
                    {
                        "op": "-",
                        "operand": 3
                    },
                    {
                        "op": "+",
                        "operand": 4
                    },
                    {
                        "op": "+",
                        "operand": 2
                    },
                    {
                        "op": "-",
                        "operand": 8
                    }
                ],
                "answer": 1,
                "question": "Number Chain: 6 → -3 → +4 → +2 → -8 → ?",
                "difficulty": "medium"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 3,
                "steps": [
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                        "op": "-",
                        "operand": 1
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                    {
                        "op": "+",
                        "operand": 4
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                    {
                        "op": "-",
                        "operand": 3
                    },
                    {
                        "op": "x",
                        "operand": 5
                    }
                ],
                "answer": 15,
                "question": "Number Chain: 3 → -1 → +4 → -3 → x5 → ?",
                "difficulty": "medium"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 1,
                "steps": [
                    {
                        "op": "-",
                        "operand": 1
                    },
                    {
                        "op": "-",
                        "operand": 1
                    },
                    {
                        "op": "+",
                        "operand": 1
                    },
                    {
                        "op": "+",
                        "operand": 8
                    }
                ],
                "answer": 8,
                "question": "Number Chain: 1 → -1 → -1 → +1 → +8 → ?",
                "difficulty": "medium"
            }
        ],
        "layout": {
            "columns": 2,
            "problemsPerPage": 20
        }
    },
    "outputTargets": {
        "screen": true,
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    "_archetype": "form-exercise",
    "_generatorId": "arithmetic-generator-v7.2.1"
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