вычислите
1) | - 3,2 | + | - 1,9 | - | 2,25 |
2) | - 5,7 | + | - 2,5 | - | 4,32 |
1) | - 3,2 | + | - 1,9 | - | 2,25 |
2) | - 5,7 | + | - 2,5 | - | 4,32 |
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2) | -5,7 | + | -2,5 | - | 4,32 | = 5,7+2,5-4,32=3,88.
Ответ: 1) 2,85; 2) 3,88.