Puzzles - Number puzzles
Exercise : Number puzzles
22.
Answer
:
6
Explanation
:
On each row, add the values of the left hand and central boxes to give the value in the right hand box.
23.
Answer
:
10
Explanation
:
In each star diagram, the number in the centre equals the sum of the top three numbers, subtracting the sum of the bottom two numbers.
24.
Answer
:
23
Explanation
:
Starting top left, and moving down in columns from left to right, the numbers follow the sequence of Prime Numbers from 2 to 23.
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