Addition Crossword

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Across
  1. 2. the answer when you add
  2. 4. the symbol for addition
  3. 5. the opposite of less
  4. 7. we must solve these
  5. 9. we use these to help us add
  6. 11. the amount altogether
  7. 12. when you make a new group of ten or hundred
Down
  1. 1. the name of this symbol =
  2. 3. another word for in all
  3. 6. when you add two of the same numbers
  4. 8. when we end up with the wrong answer
  5. 10. ones, blank, hundreds