Maths addition

2.5 + 3.9 = 6.4       13.7 + 4.5 = 18.8     7.3 + 7.5 =14.8

-0.1  +0.1                +0.3   -0.3                 -0.3   +0.3

2.4 + 4.0 = 6.4        14.0 + 4.2 = 18.2     7.0 + 7.8 = 14.8

                                     

4.6 + 1.8 =6.4         5.8 + 4.6 = 10.4        11.1 + 6.8 =17.9     

-0.2  +0.2                +0.2  -0.2                   -0.1      +0.1

4.4 + 2.0 =6.4          6.0 + 4.4 =10.4        11.0 + 6.9 = 17.9

3.1 + 6.3=9.4          9.9 + 4.6 =                  5.8 + 9.3 = 14.1              

-0.1  +0.1                +0.1  -0.1                    +0.2   -0.2

3.0 + 6.4 =9.4         10.0+4.5 =14.5           6.0 + 9.1= 14.1

2.8 + 2.5 =5.3         6.6 + 8.8 = 14.14        7.2 + 8.4 = 15.6

+0.2  -0.2                +0.2  -0.2                     +0.2        -0.2

3.0+ 2.3 = 5.3          6.9 + 9.0 =15.9           7.4 + 8.2 = 15.6   

4.8 + 6.7 = 11.5      4.2 + 5.8 = 10.4          13.5 + 8.9 = 22.4

+0.2  -0. 2               -0.2 +0.2                       -0.1    +0.1

5.0 + 6.5 = 11.5     4.4 + 6.0 = 10.4            13.4 + 9.0 = 22.4

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6.5 + 8.1 = 14.6      4.8 + 12.8 = 17.6      9.8 + 8.8 = 16.16

9.3 + 7.4 = 16.7      7.7 + 2.6 = 10.3        7.3 + 12.4 = 19.7

6.7 + 8.3 = 15         12.4 + 12.9 = 25.3     15.3 + 3.7 = 19

                                Answer for word problem.

a. 10.15

b. 15.4

c. 1.6

d. 27

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