Номер 338.
Вычислите удобным способом:а) 12 ⋅ 17 + 35 ⋅ 13 + 17 ⋅ 23;б) 41 ⋅ 80 - 25 ⋅ 41 + 55 ⋅ 29; в) 29 ⋅ 25 + 15 ⋅ 6 + 19 ⋅ 15;г) 26 ⋅ 18 + 26 ⋅ 17 + 14 ⋅ 35.
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