Submitted to – D.N Soni Sir

Crossword Puzzle PatternsStandard:no isolatedsquare,symmetric

Fancy

Nonstandard:many singlesquares(easy to design)

Making a Math CrosswordWord To Use:RECTANGLSTRIANGLEBAR GRAPHHUNDREDCIRCLEARCADDSUBTENSIX

LE

RT

AN

IHR G PRB A

C I C L E

DDH U N R D

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R E C T A N G L E SIX

US

Slide 4

Use digits 1 through 9 in the squares to make the result for each row or column equal to 10

Solving Some Other Types of Math “Crosswords”

So far, we have covered math crosswords that are just like regular crosswords but use math terms. Here are some other types.

Fill the circles with numbers so that the operations inside box arrows are valid

Fill in the missing letters so that each row and column has all the letters M A T H S

Slide 5

Crossnumbers: “Crosswords” with NumbersAcross Down

1. 30 + 13 2. 78 – 47 3. 52 + 32 4. 54 – 10 6. 18 – 7 5. 50 – 9 8. 69 – 20 7. 21 – 910. 43 – 24 9. 45 + 4512. 47 – 26 11. 95 + 314. 94 – 6 13. 23 – 1016. 79 – 47 15. 78 + 419. 16 + 8 17. 50 – 2821. 52 – 29 18. 5 + 1223. 62 + 12 20. 51 – 925. 4 + 21 22. 73 – 4327. 48 + 4 24. 30 + 1528. 13 – 3 26. 79 – 28

4 31 1

2 13 2

2 30

Slide 6

Across Down

1. 189 + 433 2. 633 / 3 4. 305 + 375 3. 13 + 7 7. 612 / 6 5. 719 + 16810. 215 + 206 6. 627 + 21412. 445 + 305 8. 291 – 9014. 5 + 6 9. 250 + 5415. 570 / 5 11. 27 + 18517. 11 + 3 13. 405 + 1118. 29 + 184 15. 9 + 420. 29 x 4 16. 425 – 1523. 302 + 198 19. 193 – 9025. 39 + 294 21. 201 – 9727. 124 + 287 22. 35 + 29629. 7 + 5 23. 375 + 12630. 324 + 187 24. 305 x 232. 17 + 13 26. 15 + 30633. 26 + 79 28. 156 – 2634. 528 – 18 30. 12 + 43 

31. 23 – 8

Solve this cross number puzzle

A CHALLENGING CROSSNUMBERS PUZZLE

+-----+-----+-----+-----+-----+-----+|1    |     |2    |3    |OOOOO|4    ||     |     |     |     |OOOOO|     ||     |     |     |     |OOOOO|     |+-----+-----+-----+-----+-----+-----+|     |OOOOO|5    |     |     |     ||     |OOOOO|     |     |     |     ||     |OOOOO|     |     |     |     |+-----+-----+-----+-----+-----+-----+|6    |     |     |     |OOOOO|     ||     |     |     |     |OOOOO|     ||     |     |     |     |OOOOO|     |+-----+-----+-----+-----+-----+-----+|     |OOOOO|7    |     |     |     ||     |OOOOO|     |     |     |     ||     |OOOOO|     |     |     |     |+-----+-----+-----+-----+-----+-----+

Across 1. The cube of a whole number.5. The number of square inches in a square yard.6. The number of cubic inches in a cubic foot.7. The number of millimeters in a meter.

Down 1. A number which is unchanged if the digits are reversed.2. A prime number.3. The number of feet in a mile.4. The number of seconds in an hour.

+-----+-----+-----+-----+-----+-----+|1    |     |2    |3    |OOOOO|4    ||  3  |  3  |  7  |  5  |OOOOO|  3  ||     |     |     |     |OOOOO|     |+-----+-----+-----+-----+-----+-----+|     |OOOOO|5    |     |     |     ||  1  |OOOOO|  1  |  2  |  9  |  6  ||     |OOOOO|     |     |     |     |+-----+-----+-----+-----+-----+-----+|6    |     |     |     |OOOOO|     ||  1  |  7  |  2  |  8  |OOOOO|  0  ||     |     |     |     |OOOOO|     |+-----+-----+-----+-----+-----+-----+|     |OOOOO|7    |     |     |     ||  3  |OOOOO|  1  |  0  |  0  |  0  ||     |OOOOO|     |     |     |     |+-----+-----+-----+-----+-----+-----+

CROSS-SUMS PUZZLE

Use only digits 1 to 9, each no more than once per puzzle entry.

Numbers above the diagonal show the sum of digits in spaces to the right.

Numbers under the diagonal show the sum of digits in spaces below.

Math C

rosswords

Dec. 2004

Slide 9

A CROSS-SUMS/PRODUCTS PUZZLE

# p s1 18 10

3 32 12

4 40 13

6 7 88 10 7

9 30 10

The product p and sum s for digits of each entry are given.

1 2

3 4

6

5

7 8

9

Across: Down:

# p s1 4 5

2 48 14

3 0 9

5 125 15

7 35 12

8 6 5

Example: For 324, p = 24 and s = 9