Карточка 30. Умножение и деление положительных и отрицательных чисел.

№1. Выполните деление:

1. \( -45 : (-9) = 5 \)
2. \( -84 : (-6) = 14 \)
3. \( -64 : 16 = -4 \)
4. \( 132 : (-1) = -132 \)
5. \( -12 : 0.3 = -40 \)
6. \( 0.18 : (-0.2) = -0.9 \)
7. \( -0.36 : (-9) = 0.04 \)
8. \( -1.5 : 0.005 = -300 \)
9. \( -7.8 : 7.8 = -1 \)
10. \( \frac{5}{6} : \left(-\frac{1}{3}\right) = \frac{5}{6} \times \left(-\frac{3}{1}\right) = -\frac{15}{6} = -2.5 \)
11. \( 0 : (-16.2) = 0 \)
12. \( -12 \frac{9}{11} : (-3) = -\frac{141}{11} : (-3) = \frac{141}{33} = \frac{47}{11} = 4 \frac{3}{11} \)
13. \( 0.3 : (-0.125) = -2.4 \)
14. \( -1 \frac{3}{4} : (-0.25) = -\frac{7}{4} : (-\frac{1}{4}) = \frac{7}{4} \times \frac{4}{1} = 7 \)
15. \( -4.2 : (-1) = 4.2 \)
16. \( -2 \frac{3}{5} : 0.13 = -\frac{13}{5} : \frac{13}{100} = -\frac{13}{5} \times \frac{100}{13} = -20 \)