Puzzles - Number puzzles

46.
Answer
:
2
Explanation
:
The diagram represents a multiplication sum : 128 x 2 = 256.

47.
Answer
:
96
Explanation
:
Moving from left to right, numbers follow the sequence of square numbers, from 6 to 10, subtracting 4 each time.

48.
Answer
:
9
Explanation
:
Reading each pair of numbers in a row as a 2 digit number, values increase by 6 each time.