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Question
(−37) + 6 = ?
Options
-43
-31
31
none of these
Solution
-31
(−37) + 6
= −37 + 6
= −31
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In a magic square each row, column and diagonal have the same sum. Check which of the following is a magic square.
1)
| 5 | -1 | -4 |
| -5 | -2 | 7 |
| 0 | 3 | -3 |
2)
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| -4 | -3 | -2 |
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Write the proper sings >, < or = in the boxes below.
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| (9) –2 `square` –8 | (10) –1 `square` –2 | (11) 6 `square` −3 | (12) –14 `square` –14 |
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