Ćwiczenie 2
18 + ( - 21 ) = 18 - 21 = - 3
24 + ( - 51 ) = 24 - 51 = - 27
- 60 - ( - 17 ) = - 60 + 17 = - 43
- 7 + ( - 2 ) = - 7 - 2 = - 9
- 29 + ( - 28 ) = - 29 - 28 = - 57
- 6 + 0.5 = 5.5
10 + ( - 2.5 ) = 10 - 2.5 = 7.5
0.1 - 1 = - 0.9
- 8 - 2.5 = - 10.5
- 3[tex]\frac{1}{3}[/tex] - ( - 3 ) = - [tex]\frac{1}{3}[/tex]
- 8 - ( - 1 [tex]\frac{1}{4}[/tex] ) = - 8 + 1 [tex]\frac{1}{4}[/tex] = - 6[tex]\frac{3}{4}[/tex]
