21-22+23-24+25-26+...50-51
Matematika
Donam133
Pertanyaan
21-22+23-24+25-26+...50-51
1 Jawaban
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1. Jawaban SedangBernapas
21-22= -1, -1 + 23 = 22, 22-24 = -2,+ 25 = 23, 23-26 = 3,........3-50-51 = 47 -51 = -4