Oblicz.
a) (-4)+(-7)-(-5)=..........
12-(-6)+(-20)=.........
(-103)-(-12)-(-57)=........
b)(-3)-(-5)+(-9)-(+4)=.......
13-(+15)-(-23)+(-30)=.......
40)+(-35)-(+50)-(-65)=.........
Jak coś jest to 8 zadanie z działu odejmowanie liczb całkowitych(Matematyka wokół nas)
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a)-4-7+5=-6
12+6-20=-2
-103+12+57=-34
b) -3+5-9-4=-11
13-15+23-30=-9
40-35-50+65=20
a) (-4)+(-7)-(-5)= -11 + 5 = -6
12-(-6)+(-20)= 18 + (-20) = -2
(-103)-(-12)-(-57)= -34
b)(-3)-(-5)+(-9)-(+4)= -3
13-(+15)-(-23)+(-30)= -9
40)+(-35)-(+50)-(-65)= 100
pozdrawiam ;)