Oblicz :
a) 2,4+(-4,1)+7,6+(-5,9)=
b) 4,58+5,4+(-1,58)+(-7,4)=
c)-0,75+6,3+(1,1)+(-0,25)+(-6,3)=
a)-66-44=
b)15-35=15+.....=.....
c)-27-9=-27+......=.....
d)3,5-10=3,5+......=.....
e)-6,25-9=6,25+.....=....
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Oblicz :
a) 2,4+(-4,1)+7,6+(-5,9)=
= 2,4 - 4,1 + 7,6 - 5,9 = 10 - 10 = 0
b) 4,58+5,4+(-1,58)+(-7,4)=
= 4,58 + 5,4 - 1,58 - 7,4 = 9,98 - 8,98 = 1
c)-0,75+6,3+(1,1)+(-0,25)+(-6,3)=
= -0,75 + 6,3 + 1,1 -0,25 - 6,3 = 7,4 - 7,3 = 0,1
a)-66-44= -110
b)15-35= 15+ (-35) = -20
c)-27-9= -27+ (- 9) = -36
d)3,5-10= 3,5+ (-10) = -6,5
e)-6,25-9= -6,25+ (-9) = -15,25
Pozdrawiam! ;-)