Integer Cross word

12345678
Across
  1. 3. x + 5 = 44 solve for x
  2. 5. ({x-2}/10)= 7 solve for x
  3. 6. (√64 x √64) – (64/2)
  4. 7. the answer of 2 down + 70
  5. 8. (x raised to zero) – (y raised to 0)
Down
  1. 1. (4 down) - ({6/3} + 4)
  2. 2. The answer of the third row of the 7th multiplication table
  3. 4. (100/2)+ (10-1)