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Magic Squares
Magic squares have rows, columns and diagonals of numbers adding to the same total.
Can you fill in the missing numbers in the following magic square?
| −4 | −7 | A |
| B | −5 | C |
| −6 | D | −6 |
Hint:
Look at the diagonal from top left to bottom right.
The total of these numbers is -15, which will also be the total of all other rows, columns and diagonal.
Let's work through these together:
A = −4
-7 + -4 = -11
-11 + -4 = -15
D = −3
-6 + -6 = -12
-15 - -12 = -3
C = −5
We have already worked out that A = -4.
-6 + -4 = -10
-15 - -10 = -5
B = −5
We have already worked out that C = -5.
-5 + -5 = -10
-15 - -15 = -5
Now, it's over to you!
