addition crossword

12345
Across
  1. 1. Add 1256 + 2345 = __________
  2. 4. If a shop had 4,500 pencils and sold 1225, the remaining pencils = __________
  3. 5. The sum of 345 + 278 = __________
Down
  1. 1. The total number of books if a library had 2345 books and bought 1210 more = __________
  2. 2. The sum of the smallest 4-digit number and the largest 3-digit number = __________
  3. 3. The result of subtracting 1234 from 3567 = __________