numbers 1st digit of number 2nd digit of number total of 2 digits total of 2 digits subtracted from original number
20 2 0 2 18
21 2 1 3 18
22 2 2 4 18
23 2 3 5 18
24 2 4 6 18
25 2 5 7 18
26 2 6 8 18
27 2 7 9 18
28 2 8 10 18
29 2 9 11 18
30 3 0 3 27
31 3 1 4 27
32 3 2 5 27
33 3 3 6 27
34 3 4 7 27
35 3 5 8 27
36 3 6 9 27
37 3 7 10 27
38 3 8 11 27
39 3 9 12 27
40 4 0 4 36
41 4 1 5 36
42 4 2 6 36
43 4 3 7 36
44 4 4 8 36
45 4 5 9 36
46 4 6 10 36
Text Box: INSTRUCTIONS Using internet site: http://www.mysticalball.com/ have students be truly amazed at the mystical ball's mind reading qualities. Open Excel. In Column A, type in the numbers 20-99 (numbers from site) using the fill down, series, tool. In Column B, type in the first digit of each number using the copy and paste tool. In Column C, type in the second digit of each number using the copy and paste tool. In Column D, type in the total of the 2 digits of each number using the formula =B2+C2 (then copy the formula to all cells in this column). In Column E, subtract Column D from Column A using the formula =A2-D2 (then copy the formula to all cells in this column). Students will see a pattern. All numbers are multiples of 9. Refer back to the mystical ball. All numbers which are multiples of 9 have the same pattern. THIS IS HOW THE MINDREADER KNOWS YOUR SYMBOL.
47 4 7 11 36
48 4 8 12 36
49 4 9 13 36
50 5 0 5 45
51 5 1 6 45
52 5 2 7 45
53 5 3 8 45
54 5 4 9 45
55 5 5 10 45
56 5 6 11 45
57 5 7 12 45
58 5 8 13 45
59 5 9 14 45
60 6 0 6 54
61 6 1 7 54
62 6 2 8 54
63 6 3 9 54
64 6 4 10 54
65 6 5 11 54
66 6 6 12 54
67 6 7 13 54
68 6 8 14 54
69 6 9 15 54
70 7 0 7 63
71 7 1 8 63
72 7 2 9 63
73 7 3 10 63
74 7 4 11 63
75 7 5 12 63
76 7 6 13 63
Mystical Ball
77 7 7 14 63
78 7 8 15 63
79 7 9 16 63
80 8 0 8 72
81 8 1 9 72
82 8 2 10 72
83 8 3 11 72
84 8 4 12 72
85 8 5 13 72
86 8 6 14 72
87 8 7 15 72
88 8 8 16 72
89 8 9 17 72
90 9 0 9 81
91 9 1 10 81
92 9 2 11 81
93 9 3 12 81
94 9 4 13 81
95 9 5 14 81
96 9 6 15 81
97 9 7 16 81
98 9 8 17 81
99 9 9 18 81