input: Write a function to perform several simple math operations. The function should accept two integers as inputs and return the results of addition, subtraction, multiplication, division, and modulo operations as a dictionary. If the second integer is zero, the function should handle the division by zero exception and return None for the division and modulo operations.
  assert simple_math_operations(10, 5) == {'Addition': 15, 'Subtraction': 5, 'Multiplication': 50, 'Division': 2.0, 'Modulo': 0}
  assert simple_math_operations(10, 0) == {'Addition': 10, 'Subtraction': 10, 'Multiplication': 0, 'Division': None, 'Modulo': None}
  assert simple_math_operations(7, 3) == {'Addition': 10, 'Subtraction': 4, 'Multiplication': 21, 'Division': 2.3333333333333335, 'Modulo': 1}
output: def simple_math_operations(a, b):
      try:
          division = a / b
          modulo = a % b
      except ZeroDivisionError:
          division = None
          modulo = None
      return {'Addition': a + b, 'Subtraction': a - b, 'Multiplication': a * b, 'Division': division, 'Modulo': modulo}