Quiz Answer Key and Fun Facts
1. Complete the nine by nine numbers grid. Each row and column contains the numbers one to nine. The three by three grids also contain the numbers one to nine. Use the revealed numbers to discover those that are missing.
It will help if you transfer the grid to a sheet of paper or copy and paste the grid onto a 'Word' or 'Notepad' page.
. . A B C. D E F. G H I
a. 2 ? 7 . 4 3 ? . ? 1 8
b. 9 1 4 . ? 7 8 . 3 ? 2
c. 6 8 3 . 5 ? 2 . 9 4 ?
d. ? 4 6 . 2 ? 3 . 5 7 ?
e. ? 9 5 . ? 4 6 . ? 8 1
f . 7 2 ? . 9 5 ? . 4 ? 3
g. 4 3 ? . ? 6 7 . 1 ? 5
h. ? 6 1 . 3 2 ? . ? 9 4
i . 5 ? 2 . 1 ? 4 . 8 3 ?
What number is missing from position: a, B ?
Worked example for beginners: The number for position "a, B" must be 5, 6 or 9 as these are the only numbers missing from row "a". As 6 and 9 already appear in column "B" and in the 3x3 grid, the answer must be 5.
2. What number is missing from position: a, F?
3. What number goes in position: a, G?
4. What number is missing from position: b, D?
5. What number goes in position: b, H?
6. What number is missing from position: c, E?
7. What number goes in position: c, I?
8. What number is missing from position: d, A?
9. What number goes in position: d, E?
10. What number is missing from position: d, I?
11. What number goes in position: e, A?
12. What number is missing from position: e, D?
13. What number goes in position: e, G?
14. What number is missing from position: f, C?
15. What number goes in position: f, F?
16. What number is missing from position: f, H?
17. What number goes in position: g, C?
18. What number is missing from position: g, D?
19. What number goes in position: g, H?
20. What number is missing from position: h. A?
21. What number goes in position: h, F?
22. What number is missing from position: h, G?
23. What number goes in position: i, B?
24. What number is missing from position: i, E?
25. What number goes in position: i, I?
Source: Author
musicmonkeyman
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crisw before going online.
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