54.Выполните действия:1) 33×17-21×19+ 2020 : 10 + 4157;
2) 1288 : 23 + 81 ×29- 42 × 28 - 799;
3) 4590 : 45 + 203 × 78 - 11 888;
4) 100 209 - 58×405 - 62 293 : 77​
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