Posts Tagged ‘arithmetic puzzle’

Just number



Put in shape


Place the remaining numbers from one to ten in the seven divisions of this overlapping geometric
configuration to fulfill the following requirements:
1) The circle, square, and triangle must individually total thirty.
2) The three outer divisions of the circle,square, and triangle must also total thirty.



The two additions


Can you arrange the following figures in two groups of four figures each so
that each group shall add to the same sum ?
                                                                           1 2 3 4 5 6 8 9

If you were allowed to reverse the 9 so as to change it into the missing 6 it would be very easy. For example, 1, 2,7, 8 and 3,4, 5, 6 add up to 18 in both cases. But you are not allowed to make any such reversal.