Question

(4+1,8)+2,2 1,6+(5+3,4) (2,41+13)+4,59 0,3+(1,7+2,5) (3,8+6)+4,2 12,25+(8+3,75) 8,3+(2,7+8) 10,2+(1,7+4,8) (46,3+18)+4,7

Answer 1

(4+1.8)+2.2=4+1,8+2,2=8
1,6+(5+3,4)=1,6+5+3,4=10
(2,41+13)+4,59=2,41+13+4,59=20
0.3+(1,7+2,5)=0,3+1,7+2,5=4,5
(3,8+6)+4,2=3,8+6+4,2=14
12,25+(8+3,75)=12,25+8+3,75=24
8,3+(2,7+8)=8,3+2,7+8=19
10.2+(1,7+4,8)=10,2+1,7+4,8=16,7
(46,3+18)+4,7=46,3+18+4,7=69

Answer 2

It looks like you have a series of mathematical expressions that involve addition. Let's calculate each of them step by step:

1. (4 + 1.8) + 2.2 = (5.8) + 2.2 = 8.0

2. 1.6 + (5 + 3.4) = 1.6 + 8.4 = 10.0

3. (2.41 + 13) + 4.59 = (15.41) + 4.59 = 20.0

4. 0.3 + (1.7 + 2.5) = 0.3 + 4.2 = 4.5

5. (3.8 + 6) + 4.2 = (9.8) + 4.2 = 14.0

6. 12.25 + (8 + 3.75) = 12.25 + 11.75 = 24.0

7. 8.3 + (2.7 + 8) = 8.3 + 10.7 = 19.0

8. 10.2 + (1.7 + 4.8) = 10.2 + 6.5 = 16.7

9. (46.3 + 18) + 4.7 = (64.3) + 4.7 = 69.0

So, the results of the given expressions are as follows:

1. 8.0
2. 10.0
3. 20.0
4. 4.5
5. 14.0
6. 24.0
7. 19.0
8. 16.7
9. 69.0