maths!

123456
Across
  1. 3. is the second number if you star counting from one
  2. 5. an operation to fastly ad high quantities
  3. 6. any number multiplied by this reminds the same
Down
  1. 1. a grafic representation of division
  2. 2. is equal to eight times five
  3. 3. five plus five is equal to
  4. 4. an operatio to fractionate numbers in numbers