Краткое пояснение: Выполним вычисления по порядку действий.
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27 : 3 ⋅ 2 + (20 : 4) = 9 ⋅ 2 + 5 = 18 + 5 = 23
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3 ⋅ (28 : 4) = 3 ⋅ 7 = 21
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32 : 8 ⋅ 7 = 4 ⋅ 7 = 28
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24 : 8 + 47 = 3 + 47 = 50
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81 - 8 ⋅ 3 : 4 = 81 - 24 : 4 = 81 - 6 = 75
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16 : 4 + 6 ⋅ 4 = 4 + 24 = 28
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80 - 32 : 4 ⋅ 3 = 80 - 8 ⋅ 3 = 80 - 24 = 56
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79 + 13 - 3 ⋅ 7 = 79 + 13 - 21 = 92 - 21 = 71
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27 : (18 : 2) ⋅ 8 = 27 : 9 ⋅ 8 = 3 ⋅ 8 = 24
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5 ⋅ (71 - 68) = 5 ⋅ 3 = 15
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(25 + 11) : 9 = 36 : 9 = 4
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(36 - 28) : 4 = 8 : 4 = 2
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93 - 4 ⋅ 7 = 93 - 28 = 65
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18 + 24 : 8 ⋅ 9 = 18 + 3 ⋅ 9 = 18 + 27 = 45
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42 - 45 : 5 = 42 - 9 = 33
Ответ: смотри решение выше