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a | 0,345|18,497|781,5 |32

b |0,3 |14,51 |12,54 |0,023

a+b | 0,645 |32,548|793,104|32,023

a+5 | 5,345|23,497|786,5 |37

0,37+b | 0,67 |14,88 |12,91 |0,393

|739,278

|205,452

|944,730

|744,278

|205,489

Răspuns:

Explicație pas cu pas:

a+b   0,345+0,3=0,645; 18,497+14,51=33,007; 32+0,023=32,023; 739,278+205,452=944,73

a+5   0,345+5=5,345; 18,497+5=23,497;  32+5=37;

739,278+5=744,278

0,37+b 0,37+0,3=0,67; 0,37+14,51=14,88;,0,37+0,023=0,393;

0,37+205,452=205,822