Odpowiedź:
A) 3+20=23
-2+(-15)= - 17
[tex] - \frac{7}{8} + \frac{3}{8} = - \frac{4}{8} [/tex]
B) 7×5=35
3×(-3)= -9
[tex] - \frac{3}{8} \times \frac{3}{4} = - \frac{9}{32} [/tex]
C) 2×9=18
-4×4= - 16
0,2×0,09=0,018
D)
[tex] {6}^{2} = 36[/tex]
[tex] {8}^{2} = 64[/tex]
[tex] {0.06}^{2} = 0.0036[/tex]