When Count Dracu entered the Sixth Form, he counted everything - it seemed to be the norm. Of course, he was soon at sixes and sevens, counting everything odds and evens. Count
There is a missing jigsaw piece in each of the following maths equations. Can you guess which is the right answer - 6 ? 16 ? 60 ? 66 ? 600 ? 606 ? 666 ?
1. 6 x __ = 36
2. __ x 10 = 600
3. __ x 6 = 96
4. 60 x 6 = 3__
5. __ x 6 = 3636
6. 666 - __ = 660
7. 66 - 6 = __
8. __ - 60 = 606
9. 6 x 600 = 3__
10. 66 - __ = 50
11. 666 + __ = 726
12. __ - 16 = 590
13. __ - 66 = 534
14. __ + 60 = 126
15. __ + 16 = 22
16. 600 x 16 = 9__
17. 606 + 60 = __
18. 600 - __ = 594
19. 666 - __ = 650
20. 600 / __ = 100
21. __ / 6 = 11
22. __ / 60 = 10
23. 666 + __ - 6 = 676
24. 66 x __ - 16 + 6 = 1046
25. 16 + __ + 600 = 676
26. 606 + __ - 6 = 616
27. 66 + 600 - __ = 650
28. 6 x 6 x __ = 576
29. __ + 600 - 66 = 1200
30. __ + 6 + 606 - 6 = 622
31. 60 x 60 - __= 3584
32. __ + 60 x 60 - 16 = 43, 544
33. __ - 6 + 16 + 60 x 60 - 16 = 4,379,984
34. __ / 60 = 1
35. 60 x __ - 16 = 944
36. 606 x 16 + __ = 9712
37. 666 - 600 + __ = 672
38. __ x 6 - 16 = 3,980
39. 660 + __ + 6 - 600 = 82
40. 666 / __ x 16 = 1,776
41. 666 + __ - 16 + 6 = 1,262
42. 606 x __ = 367, 236
43. 606 + __ - 16 + 6 = 1,196
44. 666 / __ x 606 + 16 = 67, 282
45. 666 / 6 x 606 + 16 - __ = 67, 276
46. 666 / 6 x 606 + 16 + __ = 67, 298
47. 606 / __ x 16 = 1, 616
48. 666 x __ - 16 = 3 , 980
49. __ x 6 - 16 x 60 = 34, 680
50. __ x 16 - 60 = 36
51. 66 + 600 + __ = 1272
52. 66 + 600 - __ x 666 = 731.94
53. 66 + __ / 606 x 666 = 731.94
54. __ - 600 + 606 x 666 = 47 , 952
55. 66 x __ x 606 - 666 = 23, 996, 934
56. 66 x 600 + __ / 666 = 60.369369
57. 66 + 600 - 606 x __ = 726
58. 600 / __ + 606 + 666 = 1, 372
59. 600 + __ + 666 / 66 = 28.36
60. 66 + 600 - __ / 666 = 0.09009
There is a missing jigsaw piece in each of the following maths equations. Can you guess which is the right answer - 7 ? 17 ? 70 ? 77 ? 700 ? 707 ? 777 ?
1. 7 x __ = 49
2. __ + 7 = 14
3. __ / 7 = 1
4. 7 x __ + 7 = 56
5. 7 x 7 - __ = 42
6. 7 x 7 x __ = 343
7. 7 x __ = 119
8. 707 + __ = 1484
9. ___ - 17 = 760
10. __ x 17 + 7 = 126
11. __ x 70 + 7 = 497
12. 7 x 77 + __ = 556
13. 7 x 77 + __ = 1239
14. 7 x 700 + __ = 4917
15. 17 x 17 x __ = 4913
16. 17 + __ - 7 = 717
17. 700 x __ + 17 = 11, 917
18. 707 - 17 x __ = 4, 830
19. 700 x 7 + __ = 5, 607
20. 77 + __ + 797 = 1, 574
21. 707 + 700 + 77 - __ = 1, 477
22. 77 + 707 - 7 + __ = 794
23. 700 x 7 + 17 - __ = 4, 910
24. 7 + 17 x 70 - __ = 1, 603
25. 700 + 707 - __ + 700 = 1, 330
26. 7 + 700 + 707 - __ = 1, 407
27. 7 + 17 + 70 + __ = 171
28. 77 - 17 + __ + 77 = 207
29. 77 + 17 x __ + 77 = 735
30. 707 + __ + 7 + 700 = 1 , 431
31. 7 x __ + 70 + 77 + 700 = 966
32. __ + 77 + 700 x 7 + 777 = 6, 706
33. 77 + __ + 707 - 777 = 707
34. 707 x 777 - 777 + __ = 548, 579
35. 700 + 707 + 777 - __ = 1, 477
36. 7 x 17 + 70 - __ = 112
37. 70 + 77 + 700 - __ = 140
38. __ x 700 - 707 + 777 = 553, 970
39. __ x 7 + 17 + 707 = 6, 163
40. __ x 17 + 70 - 77 = 112
41. __ - 17 x 700 + 707 = 37, 807
42. 7 x __ x 70 + 77 - 707 = 7, 700
43. 707 x __ + 17 + 70 - 77 = 4 , 959
44. 7 x 70 x __ - 700 + 707 = 37, 737
45. 17 - 7 + 70 x __ + 700 = 6, 860
46. 70 + 77 x 700 + __ - 777 = 102, 830
47. 17 + 17 x 70 - 77 + __ = 3, 003
48. 707 + 777 x 17 x 7 - __ = 176, 589
49. 70 x 77 + 700 + 707 - __ = 6, 790
50. 77 x 70 + 77 - 700 / __ = 681
51.17 + 700 x 707 / 7 = __2, 417
52. 707 - 7 x 17 + 70 + __ = 12, 047
53. 7 x 17 + 70 + 77 + __ = 966
54. 7 x 17 x 70 - 77 / __ = 1, 179
55. 717 + 70 / __ + 700 / 7 = 101.460
56. 770 + 77 / __ = 12.1
57. 17 x 70 - __ + 700 = 1, 813
58. 777 - 17 x __ = 5, 320
59. 77 x 70 + __ / 7 = 781
60. 700 + 707 + __ / 7 = 312
61. 7 + 17 + 70 + 77 / __ = 24.42
62. 777 x 17 + __ - 7 = 13, 272
63. __ + 17 x 70 x 77 - 7 = 129, 3553
64. __ + 70 + 77 - 700 - 7 = 157
65. __ / 7 + 700 - 17 = 784
66. 17 + 70 + __ - 700 = 536
67. 777 + 70 - 77 x __ = 5, 390
68. 77 + 700 / 7 - __ = 94
69. 700 + 707 + __ - 17 = 2, 167
70. 717 - 17 x 70 / __ = 7 , 000
6’s Answers :
1. 6 x 6 = 36
2. 60 x 10 = 600
3. 16 x 6 = 96
4. 60 x 6 = 360
5. 606 x 6 = 3636
6. 666 - 6 = 660
7. 66 - 6 = 60
8. 666 - 60 = 606
9. 6 x 600 = 3600
10. 66 - 16 = 50
11. 666 + 60 = 726
12. 606 - 16 = 590
13. 600 - 66 = 534
14. 66 + 60 = 126
15. 6 + 16 = 22
16. 600 x 16 = 9600
17. 606 + 60 = 666
18. 600 - 6 = 594
19. 666 - 16 = 650
20. 600 / 6 = 100
21. 66 / 6 = 11
22. 600 / 60 = 10
23. 666 + 16 - 6 = 676
24. 66 x 16 - 16 + 6 = 1046
25. 16 + 60 + 600 = 676
26. 606 + 16 - 6 = 616
27. 66 + 600 - 16 = 650
28. 6 x 6 x 16 = 576
29. 666 + 600 - 66 = 1200
30. 16 + 6 + 606 - 6 = 622
31. 60 x 60 - 16 = 3584
32. 666 + 60 x 60 - 16 = 43, 544
33. 660 - 6 + 16 + 60 x 60 - 16 = 4,379,984
34. 60 / 60 = 1
35. 60 x 16 - 16 = 944
36. 606 x 16 + 16 = 9712
37. 666 - 600 + 606 = 672
38. 666 x 6 - 16 = 3,980
39. 660 + 16 + 6 - 600 = 82
40. 666 / 6 x 16 = 1,776
41. 666 + 606 - 16 + 6 = 1,262
42. 606 x 606 = 367, 236
43. 606 + 600 - 16 + 6 = 1,196
44. 666 / 6 x 606 + 16 = 67, 282
45. 666 / 6 x 606 + 16 - 6 = 67, 276
46. 666 / 6 x 606 + 16 + 16 = 67, 298
47. 606 / 6 x 16 = 1, 616
48. 666 x 6 - 16 = 3 , 980
49. 600 x 6 - 16 x 60 = 34, 680
50. 6 x 16 - 60 = 36
51. 66 + 600 + 606 = 1272
52. 66 + 600 - 606 x 666 = 731.94
53. 66 + 600 / 606 x 666 = 731.94
54. 66 - 600 + 606 x 666 = 47 , 952
55. 66 x 600 x 606 - 666 = 23, 996, 934
56. 66 x 600 + 606 / 666 = 60.369369
57. 66 + 600 - 606 x 666 = 726
58. 600 / 6 + 606 + 666 = 1, 372
59. 600 + 606 + 666 / 66 = 28.36
60. 66 + 600 - 606 / 666 = 0.09009
7’s Answers :
1. 7 x 7 = 49
2. 7 + 7 = 14
3. 7 / 7 = 1
4. 7 x 7 + 7 = 56
5. 7 x 7 - 7 = 42
6. 7 x 7 x 7 = 343
7. 7 x 17 = 119
8. 707 + 777 = 1484
9. 777 - 17 = 760
10. 7 x 17 + 7 = 126
11. 7 x 70 + 7 = 497
12. 7 x 77 + 17 = 556
13. 7 x 77 + 700 = 1239
14. 7 x 700 + 17 = 4917
15. 17 x 17 x 17 = 4913
16. 17 + 707 - 7 = 717
17. 700 x 17 + 17 = 11, 917
18. 707 - 17 x 7 = 4, 830
19. 700 x 7 + 707 = 5, 607
20. 77 + 700 + 797 = 1, 574
21. 707 + 700 + 77 - 7 = 1, 477
22. 77 + 707 - 7 + 17 = 794
23. 700 x 7 + 17 - 7 = 4, 910
24. 7 + 17 x 70 - 77 = 1, 603
25. 700 + 707 - 777 + 700 = 1, 330
26. 7 + 700 + 707 - 7 = 1, 407
27. 7 + 17 + 70 + 77 = 171
28. 77 - 17 + 70 + 77 = 207
29. 77 + 17 x 7 + 77 = 735
30. 707 + 17 + 7 + 700 = 1 , 431
31. 7 x 17 + 70 + 77 + 700 = 966
32. 70 + 77 + 700 x 7 + 777 = 6, 706
33. 77 + 700 + 707 - 777 = 707
34. 707 x 777 - 777 + 17 = 548, 579
35. 700 + 707 + 777 - 707 = 1, 477
36. 7 x 17 + 70 - 77 = 112
37. 70 + 77 + 700 - 707 = 140
38. 77 x 700 - 707 + 777 = 553, 970
39. 777 x 7 + 17 + 707 = 6, 163
40. 7 x 17 + 70 - 77 = 112
41. 70 - 17 x 700 + 707 = 37, 807
42. 7 x 17 x 70 + 77 - 707 = 7, 700
43. 707 x 7 + 17 + 70 - 77 = 4 , 959
44. 7 x 70 x 77 - 700 + 707 = 37, 737
45. 17 - 7 + 70 x 77 + 700 = 6, 860
46. 70 + 77 x 700 + 707 - 777 = 102, 830
47. 17 + 17 x 70 - 77 + 700 = 3, 003
48. 707 + 777 x 17 x 7 - 7 = 176, 589
49. 70 x 77 + 700 + 707 - 7 = 6, 790
50. 77 x 70 + 77 - 700 / 7 = 681
51.17 + 700 x 707 / 7 = 72, 417
52. 707 - 7 x 17 + 70 + 77 = 12, 047
53. 7 x 17 + 70 + 77 + 700 = 966
54. 7 x 17 x 70 - 77 / 7 = 1, 179
55. 717 + 70 / 77 + 700 / 7 = 101.460
56. 770 + 77 / 70 = 12.1
57. 17 x 70 - 77 + 700 = 1, 813
58. 777 - 17 x 7 = 5, 320
59. 77 x 70 + 77 / 7 = 781
60. 700 + 707 + 777 / 7 = 312
61. 7 + 17 + 70 + 77 / 7 = 24.42
62. 777 x 17 + 70 - 7 = 13, 272
63. 7 + 17 x 70 x 77 - 7 = 129, 3553
64. 717 + 70 + 77 - 700 - 7 = 157
65. 707 / 7 + 700 - 17 = 784
66. 17 + 70 + 77 - 700 = 536
67. 777 + 70 - 77 x 7 = 5, 390
68. 77 + 700 / 7 - 17 = 94
69. 700 + 707 + 777 - 17 = 2, 167
70. 717 - 17 x 70 / 7 = 7 , 000
© Jacqueline Richards 2007
