Crosswise — Maths Crosswords

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Each row and each column of boxes is one equation: number, sign, number, =, answer. Equations cross where they share a number.
Fill every dashed box so that EVERY equation is true. Start with an equation that has only one box missing — the number you find there helps the equation that crosses it.
Each = sign turns green when its equation is complete and true, and red when it is not.
Spicy and Extra Spicy use negative numbers. At Extra Spicy some signs are missing too — work out whether it is +, −, × or ÷.
Stuck on Sweet or Mild? The Number bank shows the missing numbers. Tap one to put it in the selected box.

It is a crossword, but every answer is a number with one digit in each square. No answer starts with 0, and no two answers are the same.
Tap a square to choose it, and tap it again to swap between Across and Down. The clue you are on is shown above the grid.
Some clues have many possible answers — "a square number", "a multiple of 7". Use the digits from the answers that cross it to decide which one it is.
Some clues use another answer: "3 Down + 12" means add 12 to the answer to 3 Down.
Check marks each finished answer with ✓ or ✗.