Crossword Puzzle

123456
Across
  1. 3. 15 * _____ = 1500
  2. 5. The separation of something into parts or groups is called ______
  3. 6. 121 is divided by 11 gives _____
Down
  1. 1. Repeated addition is called ______
  2. 2. 49 is divisible by _______
  3. 4. To find the total sum of numbers , we perform ____