Предмет: Математика, автор: zxwmuuur

помогите пожалуйста ​

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Автор ответа: krasnan858
0

Ответ:

1. -58 + (-67) + 58 = 1)-58 + 58 = 0 2)0 + (-67) = -67

2. -1,3 + 8,9 + 9,3 = 1)-1,3 + 9,3 = 8 2)8,9 + 8 = 16,9

3. -4,9 + (-3,3) + 9,7 + (-8,4) + 55 = 1)-3,3 + 9,7 = 6,4 2)-4,9 + (-8,4) = -13,3 3)6,4 + (-13,3) = -6,9 4)-6,9 + 55 = 48,1

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