Cruciverba Matematico

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Across
  1. 4. 77+42-50+6×7-2×2
  2. 7. 2/8 di 88
  3. 8. 21 × 4
  4. 10. 6×7+[50+(8-4+5)+7×7]+5
  5. 11. 2022 ÷ 6
Down
  1. 1. 44+10×2-5+4×7-44÷4
  2. 2. 5/7 di 70
  3. 3. 426 ÷ 6
  4. 5. 42 ÷ 3
  5. 6. 19 × 8
  6. 9. 2020 ÷ 4