№955
1) -8 + (-2) = -10 =
2)
3) -1,8 + (-2) = -3,8 =
4) 0,4 * () = -0,72 =
5)
6) -4,8 : = -4,5 =
№956
1)
2) 7,5
3) 0,9
4)
№955
1) -8 + (-2) = -10 =![\frac{10}{1}](/tpl/images/1686/1967/51550.png)
2)![-2\frac{2}{5} * (-3\frac{1}{8}) = 7,5 = 7\frac{1}{2} = \frac{15}{2}](/tpl/images/1686/1967/b0331.png)
3) -1,8 + (-2) = -3,8 =![-3\frac{4}{5} = -\frac{19}{5}](/tpl/images/1686/1967/64b54.png)
4) 0,4 * (
) = -0,72 = ![-\frac{18}{25}](/tpl/images/1686/1967/c62f9.png)
5)![-\frac{5}{42} + \frac{10}{21} = -\frac{5}{42} + \frac{20}{42} = \frac{15}{42} = \frac{5}{14}](/tpl/images/1686/1967/6fb37.png)
6) -4,8 :
= -4,5 = ![-4\frac{1}{2} = -\frac{9}{2}](/tpl/images/1686/1967/95a12.png)
№956
1)![7\frac{13}{28} - (3\frac{9}{28} - 5\frac{3}{13}) =7\frac{13}{28} - 3\frac{9}{28} + 5\frac{3}{13} = (7\frac{13}{28} - 3\frac{9}{28}) + 5\frac{3}{13} = 4\frac{1}{7} + 5\frac{3}{13} = \frac{29}{7} + \frac{63}{13} = \frac{203 + 441}{91} = 9\frac{34}{91}](/tpl/images/1686/1967/d5751.png)
2) 7,5
3) 0,9
4)![14\frac{13}{24}](/tpl/images/1686/1967/9459d.png)