Testlar
O'rganish
Musobaqalar
Tadbirlar
Yangi
uz
Kirish
Mobil ilovadan foydalanish
Ortga qaytish
Savol
Sonlar & Amallar
Amallarni bajaring:
4
2
-
1
2
:
4
6
+
5
1
2
·
1
4
=
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