Răspuns:
Explicație pas cu pas:
a) x = 10,76 +3,859 = 14,619
10,760+
3,859
_____
14,619
y = 0,56 +9,705 + 3,08 = 3,640+9,705 = 13,345
3,640+
9,705
_____
13,345
x + y = 14,619 + 13,345 = 27,964
14,619+
13,345
______
27,964
x+y = 27,964 ; rotunjit la a doua zecimala = 27,96
b) x= 4,207 +6,95 +0,564 = 4,771 + 6,950 = 11,721
4,771+
6,950
_____
11,721
y = 38,9 + 5,068 = 43,968
38,900+
5,068
_____
43,968
x+y = 11,721+43,968 = 55,689
11,721+
43,968
_____
55,689
x+y = 55,689 => rotunjit la a doua zecimala = 55,69
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