April 2019 0 39 Report
8 wpisz odpowiednie liczby
a).............+ ............... = 21
dodatnia ujemna

b) ............ + ............. = -21
dodatnia ujemna

c)............ - .............. = 21
ujemna ujemna

d) .............. - .............. = -21
ujemna ujemna

u

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