Number puzzles


41)


Answer : 7

Explanation:

Starting with the numbers in the top row, and following straight lines through the centre of the diagram, subtract the middle number from the top number to give the corresponding value on the bottom row.

42)


Answer

:

9

Explanation

:

In each square of the diagram, the sum of the numbers is always 22.

43)


Answer

:

40

Explanation

:

Moving from left to right, numbers increase by 2,3,4 and 5.

44)


Answer

:

6

Explanation

:

The numbers in each row and column add up to 15.

45)


Answer

:

4

Explanation

:

Working in columns, the sum of the numbers in each column is always 14.