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
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Some facts we should know Try to find all 24 words on this board.
| 6 | 1 | = | 6 | + | 0 | 1 | 5 | J | X | G | V | P | I | H |
| S | F | 5 | 1 | = | 8 | + | 7 | 0 | 7 | A | F | A | 1 | G |
| 5 | I | 6 | R | C | R | C | = | 5 | = | 0 | 4 | F | 3 | 2 |
| 1 | U | 6 | 0 | 3 | N | P | 5 | = | 4 | 0 | 2 | Q | + | 2 |
| = | 1 | = | Y | 0 | W | K | 2 | 5 | + | 1 | = | I | 1 | = |
| 7 | 9 | 3 | 0 | + | 1 | D | + | 2 | 3 | = | 2 | 1 | 3 | 1 |
| + | + | 3 | 4 | 4 | 5 | = | 0 | = | W | 0 | 1 | 6 | = | 1 |
| 8 | 1 | + | = | 0 | + | V | 5 | 5 | K | 5 | + | + | 2 | + |
| 2 | 9 | 3 | 0 | = | 1 | K | 2 | 2 | Q | + | 2 | 1 | 6 | 1 |
| = | = | 3 | 2 | 7 | 5 | J | U | 4 | + | 0 | 1 | 6 | W | 1 |
| 4 | 3 | R | + | 0 | = | I | M | I | = | 5 | W | = | W | L |
| 1 | 8 | J | 0 | I | 3 | + | 3 | = | 6 | 2 | 7 | 3 | W | D |
| + | J | 0 | 2 | = | 0 | 1 | + | 0 | 1 | N | + | 2 | B | I |
| 4 | E | M | U | 4 | 3 | = | 7 | 1 | + | 7 | 1 | 0 | K | D |
| 1 | K | E | A | 1 | 8 | + | 1 | 8 | = | 3 | 6 | Z | 4 | Y |
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