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2 dasaran matem
- 1. 5 15 20
1 11 16
10 20 25
80 90 95
37 47 52
90 100 105
31 41 46
30 40 45
- 10
+ 5
- 3. ստուգում
54 - 4 = 50 13 - 9 = 4
9 + 8 = 17 60 + 7 = 67
3 + 60 = 63 86 - 6 = 80
14 - 4 = 10
30 + 40 = 70
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