Предмет:
МатематикаАвтор:
анонимНайдем значение выражения 2,5 - 3,6 * (1,5 + 2,5).
Сначала в порядке очереди находим значение выражения в скобках, затем вычисляем умножение или деление, потом проводятся действия сложения или вычитания. То есть получаем:
1) Первое действие 1,5 + 2,5 = 4, тогда выражение станет в виде 2,5 - 3,6 * 4;
2) Второе действие 3,6 * 4 = 3 * 4 + 0,6 * 4 = 12 + 2,4 = 14,4, тогда выражение станет в виде 2,5 - 14,4;
3) Последнее действие 2,5 - 14,4 = - 12 + 0,1 = - 11,9.
В итоге получили, 2,5 - 3,6 * (1,5 + 2,5) = - 11,9.
Автор:
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Example: We went (go) to the cinema last night.
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2 _______ you ever _______ (sing) in a concert?
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15 He _______ (not finish) all his work yesterday.
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Example: He had breakfast before he got dressed.
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speak see meet
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get take bring
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go get come
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