medium Set 7 Form Exercise

This page uses a content type that does not have a custom renderer yet. Raw structured data is shown below.

{
    "_meta": {
        "schemaVersion": "2.0.0",
        "nodeId": "node-1-ncross-mixed-medium",
        "pageNumber": 7,
        "generatedAt": "2026-03-01T01:52:11.470Z",
        "generatorVersion": "v7.2.1-wp-g2",
        "seed": "7861006073060909671",
        "resolvedParams": {
            "expectedPuzzleSize": null,
            "expectedSize": null,
            "expectedDifficulty": "medium",
            "expectedVariant": null,
            "displayDifficulty": "medium",
            "theme": null,
            "contentType": null,
            "source": {
                "puzzleSize": "config",
                "size": "config",
                "difficulty": "slug",
                "variant": "config"
            }
        },
        "contractVersion": "1.0",
        "canonicalVersion": "2.0",
        "archetype": "form-exercise",
        "contentHash": "589b3d02e308c378846fcbadebce5dedd8bcdc44f56b043ae78826b80077951e",
        "fallbackReason": null
    },
    "title": "form-exercise set 7",
    "operation": "number-cross",
    "subject": "arithmetic",
    "difficulty": "medium",
    "config": {
        "maxNumber": 10,
        "regrouping": false,
        "operation": "mixed",
        "operations": [
            "+",
            "-",
            "×",
            "÷"
        ],
        "difficulty": "medium"
    },
    "problems": [
        {
            "id": 1,
            "type": "number-cross",
            "grid": [
                7,
                15,
                1,
                14,
                6
            ],
            "missingIndex": 0,
            "answer": 7,
            "correctAnswer": "7",
            "op": "-",
            "question": "Fill in the missing number. The cross follows: left - center = right, and top - center = bottom."
        },
        {
            "id": 2,
            "type": "number-cross",
            "grid": [
                16,
                16,
                2,
                14,
                14
            ],
            "missingIndex": 4,
            "answer": 14,
            "correctAnswer": "14",
            "op": "-",
            "question": "Fill in the missing number. The cross follows: left - center = right, and top - center = bottom."
        },
        {
            "id": 3,
            "type": "number-cross",
            "grid": [
                6,
                4,
                13,
                17,
                19
            ],
            "missingIndex": 2,
            "answer": 13,
            "correctAnswer": "13",
            "op": "+",
            "question": "Fill in the missing number. The cross follows: left + center = right, and top + center = bottom."
        },
        {
            "id": 4,
            "type": "number-cross",
            "grid": [
                14,
                1,
                5,
                6,
                19
            ],
            "missingIndex": 4,
            "answer": 19,
            "correctAnswer": "19",
            "op": "+",
            "question": "Fill in the missing number. The cross follows: left + center = right, and top + center = bottom."
        },
        {
            "id": 5,
            "type": "number-cross",
            "grid": [
                7,
                2,
                10,
                12,
                17
            ],
            "missingIndex": 1,
            "answer": 2,
            "correctAnswer": "2",
            "op": "+",
            "question": "Fill in the missing number. The cross follows: left + center = right, and top + center = bottom."
        },
        {
            "id": 6,
            "type": "number-cross",
            "grid": [
                9,
                3,
                1,
                2,
                8
            ],
            "missingIndex": 3,
            "answer": 2,
            "correctAnswer": "2",
            "op": "-",
            "question": "Fill in the missing number. The cross follows: left - center = right, and top - center = bottom."
        }
    ],
    "layout": {
        "columns": 2,
        "problemsPerPage": 20
    },
    "semantics": {
        "contentType": "form-exercise",
        "difficulty": "medium"
    },
    "version": "2.0",
    "_archetype": null,
    "_generatorId": null
}