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
| 2 | 2 | = | 1 | 1 | + | 1 | 1 | 2 | + | 1 | 2 | = | 2 | 4 |
| F | 5 | 1 | = | 7 | + | 8 | 5 | O | A | S | R | G | H | D |
| P | 5 | 1 | = | 8 | + | 7 | 3 | 3 | + | 3 | 3 | = | 6 | 6 |
| T | Z | B | 7 | 1 | = | 8 | 2 | = | 4 | 1 | + | 4 | 1 | D |
| Y | X | A | 8 | 5 | 0 | + | 5 | 0 | = | 1 | 0 | 0 | N | V |
| O | I | = | 2 | V | + | 0 | 2 | = | 0 | 1 | + | 0 | 1 | 4 |
| N | 3 | + | 3 | = | 6 | 2 | 5 | = | 2 | 5 | = | 5 | 0 | 3 |
| 6 | 0 | B | T | D | D | J | 5 | L | N | Q | Z | I | + | = |
| 5 | 4 | 0 | + | 2 | = | 4 | 2 | = | C | Y | F | U | 6 | 7 |
| B | F | 0 | 3 | = | 5 | 1 | + | 5 | 1 | G | V | D | = | 1 |
| N | D | B | P | 0 | 7 | = | 0 | 4 | + | 0 | 3 | E | 1 | + |
| K | R | 7 | = | 4 | + | 3 | P | C | C | B | 0 | P | 6 | 7 |
| 0 | 4 | = | 0 | 2 | + | 0 | 2 | 3 | = | 6 | 1 | + | 6 | 1 |
| N | U | F | 6 | 2 | = | 3 | 1 | + | 3 | 1 | U | M | S | G |
| F | W | M | X | R | H | 8 | 3 | = | 9 | 1 | + | 9 | 1 | W |
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