Question

3,4+2,5; 17,2+2,8; 5,9+3,7; 4,587+7,64; 5,7-1,3; 8-3,4; 12,3-1,8; 10,273-5,49;

Answer 1

3,4+2,5=5,9
17,2+2,8=20
5,9+3,7=9,6
4,587+7,64=12,227
5,7-1,3=4,4
8-3,4=4,6
12,3-1,8=10,5
10,273-5,49=4,783

Answer 2

Let's calculate the given arithmetic expressions:

1. 3.4 + 2.5 = 5.9
2. 17.2 + 2.8 = 20.0
3. 5.9 + 3.7 = 9.6
4. 4.587 + 7.64 = 12.227
5. 5.7 - 1.3 = 4.4
6. 8 - 3.4 = 4.6
7. 12.3 - 1.8 = 10.5
8. 10.273 - 5.49 = 4.783