Math
Some facts we should know
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10+10=20
10+6=16
11+11=22
12+12=24
13+13=26
14+14=28
15+15=30
16+16=32
17+17=34
18+18=36
19+19=38
20+20=40
25=25=50
3+3=6
3+3=6
3+4=7
30+40=70
33+33=66
40+2=42
50+25=75
50+50=100
7+8=15
75+25=100
8+7=15
| 1 | 1 | + | 1 | 1 | = | 2 | 2 | 0 | + | 2 | 0 | = | 4 | 0 |
| 7 | 8 | 5 | Y | 0 | A | B | 7 | + | 8 | = | 1 | 5 | B | X |
| + | + | 7 | L | + | N | M | O | Q | E | I | D | U | K | C |
| 1 | 1 | = | 0 | 1 | 3 | + | 1 | 3 | = | 2 | 6 | S | E | O |
| 7 | 8 | 5 | 3 | 0 | + | 4 | 0 | = | 7 | 0 | C | P | J | Q |
| = | = | 2 | Y | = | 1 | 5 | + | 1 | 5 | = | 3 | 0 | G | Q |
| 3 | 3 | + | O | 2 | N | = | 6 | 1 | = | 6 | + | 0 | 1 | E |
| 4 | 6 | 0 | G | 0 | Q | Q | 5 | H | D | T | 3 | 4 | 6 | E |
| X | 0 | 5 | = | 5 | 2 | = | 5 | 2 | J | X | = | 2 | + | F |
| 2 | 4 | = | 2 | + | 0 | 4 | B | X | + | Y | 6 | = | 1 | C |
| O | Y | 0 | 0 | 1 | = | 0 | 5 | + | 0 | 5 | N | 2 | 6 | U |
| 6 | 6 | = | 3 | 3 | + | 3 | 3 | T | L | Q | 7 | 1 | = | G |
| 1 | 4 | + | 1 | 4 | = | 2 | 8 | C | 7 | = | 4 | + | 3 | X |
| T | S | I | A | M | O | E | E | W | I | G | F | 2 | 2 | U |
| 5 | 1 | = | 7 | + | 8 | 3 | = | 9 | 1 | + | 9 | 1 | Q | J |
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