1) 16

[tex] - 12 \div ( - \frac{3}{4} ) = \frac{12 \times 4}{3} = 4 \times 4 = 16[/tex]

2) Г) -10

[tex]2 \div ( - 0.2) = 20 \div ( - 2) = - 10[/tex]

3) Г) 1/16

[tex] - x = - \frac{1}{16} \\ x = \frac{1}{16} [/tex]

4)

1) Б

1) Б2) В

1) Б2) В3) 1 2/3

1) Б2) В3) 1 2/34) А

[tex] \frac{1}{3} + \frac{1}{6} = \frac{2}{6} + \frac{1}{6} = \frac{3}{6} = \frac{1}{2} [/tex]

[tex] - 1 \frac{3}{5} \times 1 \frac{1}{4} = - \frac{8 \times 5}{5 \times 4} = - 2[/tex]

[tex]3 \frac{1}{3} - 1 \frac{2}{3} = 2 \frac{4}{3} - 1 \frac{2}{3} = 1 \frac{2}{3} [/tex]

[tex] - 1 \frac{1}{3} \div ( - \frac{2}{3} ) = \frac{4 \times 3}{3 \times 2} = 2[/tex]