Ответ:
1. -5 17/40
2. -1,8
3. 5
4. 10 28/45
5. -29
Пошаговое объяснение:
1. -2 3/10 + (-3 1/8) = -2 3/10 - 3 1/8 = -2 12/40 - 3 5/40 = -5 17/40
2. 5,4 - 7,2 = -1,8
3. -42+54+(-13)+(-26)+32 = -42+54-13-26+32 = -81+86 = 5
4. 4 5/9-(-3 7/15)-(-2 3/5) = 4 5/9+3 7/15+2 3/5 =
4 25/45+3 21/45+2 27/45 = 9 73/45 = 10 28/45
5. 8+(-13)-(-11)-(-7)-42 = 8 - 13 + 11 + 7 - 42 = 26 - 55 = -29
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Answers & Comments
Ответ:
1. -5 17/40
2. -1,8
3. 5
4. 10 28/45
5. -29
Пошаговое объяснение:
1. -2 3/10 + (-3 1/8) = -2 3/10 - 3 1/8 = -2 12/40 - 3 5/40 = -5 17/40
2. 5,4 - 7,2 = -1,8
3. -42+54+(-13)+(-26)+32 = -42+54-13-26+32 = -81+86 = 5
4. 4 5/9-(-3 7/15)-(-2 3/5) = 4 5/9+3 7/15+2 3/5 =
4 25/45+3 21/45+2 27/45 = 9 73/45 = 10 28/45
5. 8+(-13)-(-11)-(-7)-42 = 8 - 13 + 11 + 7 - 42 = 26 - 55 = -29