Давай решим каждый пример по порядку:
a) 10 - (-3) = 10 + 3 = 13
б) 12 - (-14) = 12 + 14 = 26
в) -21 - (-19) = -21 + 19 = -2
г) 9 - (-9) = 9 + 9 = 18
ж) 2,5 – 8,5 = -6
B) \(\frac{5}{12}\) - (-\(\frac{1}{12}\)) = \(\frac{5}{12}\) + \(\frac{1}{12}\) = \(\frac{6}{12}\) = \(\frac{1}{2}\)
3) 0 - (-40,6) = 0 + 40,6 = 40,6
и) 0 - 64,8 = -64,8
II) -\(\frac{2}{7}\) - (-\(\frac{15}{2}\)) = -\(\frac{2}{7}\) + \(\frac{15}{2}\) = -\(\frac{4}{14}\) + \(\frac{105}{14}\) = \(\frac{101}{14}\) = 7 \(\frac{3}{14}\)
к) -7,62 - (-7,62) = -7,62 + 7,62 = 0
p) \(\frac{2}{15}\) - (-\(\frac{7}{15}\)) = \(\frac{2}{15}\) + \(\frac{7}{15}\) = \(\frac{9}{15}\) = \(\frac{3}{5}\)
д) -1,4 – 1,4 = -2,8
л) -0,21 - 0 = -0,21
e) -5,6 - (-3,1) = -5,6 + 3,1 = -2,5
м) -3\(\frac{1}{4}\) - 0,75 = -3,25 - 0,75 = -4
c) -1\(\frac{8}{3}\) - \(\frac{4}{1}\) = -\(\frac{11}{3}\) - \(\frac{4}{1}\) = -\(\frac{11}{3}\) - \(\frac{12}{3}\) = -\(\frac{23}{3}\) = -7 \(\frac{2}{3}\)
T) 1\(\frac{5}{11}\) - \(\frac{22}{2}\) = \(\frac{16}{11}\) - 11 = \(\frac{16}{11}\) - \(\frac{121}{11}\) = -\(\frac{105}{11}\) = -9 \(\frac{6}{11}\)
Ответ: См. решение выше
Ты молодец! У тебя всё получится!