-4,5+(-0,25)-(0,25)+(-9/2)-(-0,08)+23/25=
14-(-6,2)+(-7,8)-(+15,3)-0,1=
-[-(3/4)]+(-1/4)-(-2 3/4)+3,5=
-6+(-7,2)-(-1,5)+(-3)-(-0,34)=
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-4,5+(-0,25)-(0,25)+(-9/2)-(-0,08)+23/25=
-4,5-0,25-0,25-4,5+0,08+0,92=
-8,5
14-(-6,2)+(-7,8)-(+15,3)-0,1=
14+6,2-7,8-15,3-0,1=
-3
-[-(3/4)]+(-1/4)-(-2 3/4)+3,5=
0,75-0,25+2,75+3,5=
6,75
-6+(-7,2)-(-1,5)+(-3)-(-0,34)=
-6-7,2+1,5-3+0,34=
-14,36
a)
-4,5+(-0,25)-(0,25)+(-⁹/₂)-(-0,08)+²³/₂₅=
-4,5+(-0,25)-(0,25)+(-4,5)-(-0,08)+0,92=
-4,75-(0,25)+(-4,5)-(-0,08)+0,92=
-5+(-4,5)-(-0,08)+0,92=
-9,5-(-0,08)+0,92=
-9,5-(-0,08)+0,92=
-9,42+0,92-8,5
b)
14-(-6,2)+(-7,8)-15,3-0,1=
20,2+(-7,8)-15,3-0,1=
12,4-15,3-0,1=
-2,9-0,1=-3
c)
-³/₄+(-¹/₄)-(-2 ¾)+3,5=
-³/₄+(-¹/₄)-(-2 ¾)+3½=
-1-(-2 ¾)+3½=
2¾+3½=6
d)
-6+(-7,2)-(-1,5)+(-3)-(-0,34)=
-13,2-(-1,5)+(-3)-(-0,34)=
-11,7+(-3)-(-0,34)=
-14,7-(-0,34)14,36