Number Chain Patterns Hard — Set 47

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                "type": "number-chain",
                "subType": "number-chain",
                "start": 2,
                "steps": [
                    {
                        "op": "x",
                        "operand": 2
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                    {
                        "op": "x",
                        "operand": 5
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                    {
                        "op": "-",
                        "operand": 14
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                    {
                        "op": "+",
                        "operand": 6
                    },
                    {
                        "op": "+",
                        "operand": 2
                    }
                ],
                "answer": 14,
                "question": "Number Chain: 2 → x2 → x5 → -14 → +6 → +2 → ?",
                "difficulty": "hard"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 7,
                "steps": [
                    {
                        "op": "+",
                        "operand": 8
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                    {
                        "op": "-",
                        "operand": 12
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                        "op": "-",
                        "operand": 1
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                    {
                        "op": "+",
                        "operand": 1
                    },
                    {
                        "op": "-",
                        "operand": 2
                    }
                ],
                "answer": 1,
                "question": "Number Chain: 7 → +8 → -12 → -1 → +1 → -2 → ?",
                "difficulty": "hard"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 5,
                "steps": [
                    {
                        "op": "-",
                        "operand": 3
                    },
                    {
                        "op": "-",
                        "operand": 1
                    },
                    {
                        "op": "x",
                        "operand": 3
                    },
                    {
                        "op": "-",
                        "operand": 1
                    },
                    {
                        "op": "+",
                        "operand": 5
                    }
                ],
                "answer": 7,
                "question": "Number Chain: 5 → -3 → -1 → x3 → -1 → +5 → ?",
                "difficulty": "hard"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 8,
                "steps": [
                    {
                        "op": "-",
                        "operand": 5
                    },
                    {
                        "op": "x",
                        "operand": 2
                    },
                    {
                        "op": "-",
                        "operand": 1
                    },
                    {
                        "op": "-",
                        "operand": 4
                    },
                    {
                        "op": "+",
                        "operand": 9
                    }
                ],
                "answer": 10,
                "question": "Number Chain: 8 → -5 → x2 → -1 → -4 → +9 → ?",
                "difficulty": "hard"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 10,
                "steps": [
                    {
                        "op": "x",
                        "operand": 4
                    },
                    {
                        "op": "+",
                        "operand": 12
                    },
                    {
                        "op": "x",
                        "operand": 3
                    },
                    {
                        "op": "+",
                        "operand": 8
                    },
                    {
                        "op": "+",
                        "operand": 9
                    }
                ],
                "answer": 173,
                "question": "Number Chain: 10 → x4 → +12 → x3 → +8 → +9 → ?",
                "difficulty": "hard"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 11,
                "steps": [
                    {
                        "op": "x",
                        "operand": 4
                    },
                    {
                        "op": "x",
                        "operand": 2
                    },
                    {
                        "op": "x",
                        "operand": 4
                    },
                    {
                        "op": "-",
                        "operand": 120
                    },
                    {
                        "op": "+",
                        "operand": 4
                    }
                ],
                "answer": 236,
                "question": "Number Chain: 11 → x4 → x2 → x4 → -120 → +4 → ?",
                "difficulty": "hard"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 11,
                "steps": [
                    {
                        "op": "x",
                        "operand": 4
                    },
                    {
                        "op": "+",
                        "operand": 7
                    },
                    {
                        "op": "-",
                        "operand": 10
                    },
                    {
                        "op": "+",
                        "operand": 11
                    },
                    {
                        "op": "x",
                        "operand": 5
                    }
                ],
                "answer": 260,
                "question": "Number Chain: 11 → x4 → +7 → -10 → +11 → x5 → ?",
                "difficulty": "hard"
            },
            {
                "type": "number-chain",
                "subType": "number-chain",
                "start": 7,
                "steps": [
                    {
                        "op": "-",
                        "operand": 2
                    },
                    {
                        "op": "-",
                        "operand": 4
                    },
                    {
                        "op": "+",
                        "operand": 1
                    },
                    {
                        "op": "-",
                        "operand": 1
                    },
                    {
                        "op": "x",
                        "operand": 2
                    }
                ],
                "answer": 2,
                "question": "Number Chain: 7 → -2 → -4 → +1 → -1 → x2 → ?",
                "difficulty": "hard"
            }
        ],
        "layout": {
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    "_archetype": "form-exercise",
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