- a) n = -21,5;
$$|n| = |-21,5| = 21,5$$
- б) n = 21,5;
$$|n| = |21,5| = 21,5$$
- в) n = -33;
$$|n| = |-33| = 33$$
- г) n = -$$\frac{1}{3}$$;
$$|n| = |-\frac{1}{3}| = \frac{1}{3}$$
- д) n = 4$$\frac{7}{9}$$;
$$|n| = |4\frac{7}{9}| = 4\frac{7}{9}$$
- e) n = -5$$\frac{19}{20}$$;
$$|n| = |-5\frac{19}{20}| = 5\frac{19}{20}$$
Ответ: a) 21,5; б) 21,5; в) 33; г) $$\frac{1}{3}$$; д) 4$$\frac{7}{9}$$; e) 5$$\frac{19}{20}$$