Puzzles - Number puzzles

34.
Answer
:
7
Explanation
:
The inner digit in each segment equals the sum of the two numbers in the outer part of the opposite segment.

35.
Answer
:
0
Explanation
:
In each row of each grid, multiply the left and right hand numbers together to give a digit value, and write this value in the two centre boxes.

36.
Answer
:
5
Explanation
:
In each H shape, the central number is equal to the difference between the sum of the 3 left hand numbers and the sum of the 3 right hand numbers.