2+[17]+15x15, 244, 233, 222, 211, (+4).(-50)=, -2001, -200, +2000, -2500,  55-(x)=120, 67, 78, 65, 94, 2.(-20).(+10), -350, -450, -400, 4000, (-20).(-1)=, +20, -20, +200, -200, 5.(30+15)=, 170, 350, 225, 370, (60+1500):3=, 520, 450, 5200, 386, (600:30)x10, 300, 200, 500, 150, (400x10):8, 500, 550, 250, 46, 20+20+20+7=, 76, 67, 57, 56, 35+70 x 10=, 735, 467, 456, 335, 98x27+37=, 2667, 2683, 3456, 2345.

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