Question

va rooog mult de tot la ex. 9 vreau si eu

Answer 1

vezi ca modulul nu l stiu sa l fac

Answer 2

a+b.
2,6+3,5= 6,1;
-7/3+(-15/9)= -7/3+ (-5/3)= -7/3 -5/3= -12/3= -4;
-1,6+17/5= -16/10+17/5= -8/5+17/5= 9/5;
-43/10+(-8)= -43/10- 8= -43/10- 80/10= -123/10;
-0,(2)+0,1(6)= -2/9+(16-1)/90=-2/9+15/90= -20/90+15/90= -5/90=-1/18

a-b
2,6-3,5=-0,9
-7/3-(-15/9)= -7/3 +15/9= -7/3+5/3= -2/3
-1,6-17/5=-16/10-17/5= -8/5-17/5= -25/5= -5
-43/10-(-8)= -43/10+8= -43/10+80/10= 37/10
-0,(2)-0,1(6)= -2/9-(16-1)/90= -2/9-15/90= -20/90-15/90= -35/90= -7/18

|a|-|b|
|2,6|-|3,5|= 2,6-3,5= -0,9
|-7/3|-|-15/9|= 7/3-15/9=7/3-5/3= 2/3
|-1,6|-|17/5|= 1,6-17/5= 16/10-17/5= 8/5-17/5= -9/5
|-43/10|-|-8|= 43/10-8=43/10-80/10= -37/10
|-0,(2)|-|0,1(6)|= 0,(2)-0,1(6)= 2/9-(16-1)/90= 20/90-15/90= 5/90= 1/18