first

12345678
Across
  1. 1. Three plus three
  2. 3. Three times three
  3. 4. Two times two
  4. 5. Number of fingers on both hands
  5. 6. The first natural number
  6. 7. Two times four
Down
  1. 1. Days in a week
  2. 2. The number before one
  3. 4. Half of ten
  4. 5. Number of sides in a triangle
  5. 8. One plus one