220-50+60 = (830-690) * 3 = 5000/100/2 = 28+17*2 = 60/15+96/4 = 38+9*17 = 39*3-27*2 = 47+21*3-29 = 900-105*3+42 = 123/3-41 = 720+112*3-100 = (63+27/9) * 4=

Сначала (), затем * или /, затем + или -.

а) 220 - 50 + 60 = 230.

б) (830 - 690) * 3 = 140 * 3 = 220.

в) 5000 / 100 / 2 = 50 / 2 = 25.

г) 28 + 17 * 2 = 28 + 34 = 62.

д) 60 / 15 + 96 / 4 = 4 + 24 = 28.

д) 38 + 9 * 17 = 38 + 153 = 191.

е) 39 * 3 - 27 * 2 = 117 - 54 = 63.

ж) 47 + 21 * 3 - 29 = 47 + 63 - 29 = 110 - 29 = 81.

з) 900 - 105 * 3 + 42 = 900 - 315 + 42 = 627.

и) 123 / 3 - 41 = 41 - 41 = 0.

к) 720 + 112 * 3 - 100 = 720 + 336 - 100 = 956.

л) (63 + 27 / 9) * 4 = (63 + 3) * 4 = 66 * 4 = 264.