16.
a)
[tex]( - 3.4) + \frac{15}{11} + ( - 1.6) + 7 + ( - 1 \frac{4}{11}) = - 3 \frac{2}{5} + \frac{15}{11} - 1 \frac{3}{5} + 7 - \frac{15}{11} = - \frac{17}{5} + \frac{15}{11} - \frac{8}{5} + 7 - \frac{15}{11} = - \frac{187}{55} + \frac{75 }{55} - \frac{88}{55} + \frac{385}{55} - \frac{75}{55} = - \frac{187}{55} - \frac{88}{55} + \frac{385}{55} = - \frac{275}{55} + \frac{385}{55} = \frac{110}{55} = 2[/tex]
b)
[tex]4 + ( - 1.125) + 3 \frac{1}{4} + ( - 0.875) - 0.25 = 4 - 1 \frac{1}{8} + \frac{13}{4} - \frac{7}{8} - \frac{1}{4} = \frac{32}{8} - \frac{9}{8} + \frac{26}{8} - \frac{7}{8} - \frac{2}{8} = \frac{40}{8} = 5[/tex]
c)
[tex] - 2 \frac{1}{2} - 1.4 + ( - 0.5) + 10 - 0.6 - ( - 10) = - 2.5 - 1.4 - 0.5 + 10 - 0.6 + 10 = 20 - 5 = 15[/tex]
d)
[tex] - ( - 4) - ( - 5) - ( - 6) - 11 - ( - ( - 4)) = 4 + 5 + 6 - 11 - 4 = 11 - 11 = 0[/tex]
e)
[tex] - 11 - 16 - ( - 10) + ( - 4) - (( - 3) - ( - 4)) = - 27 + 10 - 4 - ( - 3 + 4) = - 31 + 10 - 1 = 10 - 32 = - 22[/tex]
f)
[tex] - ( - ( - 5) - 4 - ( - 6)) - ( - ( - 6) - 4 + ( - 10)) = - (5 - 4 + 6) - (6 - 4 - 10) = - 7 - 0 = - 7[/tex]
g)
[tex] - (- ( - ( - 4) - 10) - (10 - ( - 5))) - ( - 5) = - ( - (4 - 10) - (10 + 5)) + 5 = - ( - ( - 6) - 15) + 5 = - (6 - 15) + 5 = - (- 9) + 5 = 9 + 5 = 14[/tex]
17.
a)
[tex]18 - ( - 5) + ( - 20) - ( - ( - 13)) - ( - 27) - 100 = 18 + 5 - 20 - 13 + 27 - 100 = 23 - 33 + 27 - 100 = - 10 + 27 - 100 = 17 - 100 = - 83[/tex]
b)
[tex] - 2 \frac{3}{4} + ( - 1 \frac{1}{2} ) - ( - 4 \frac{1}{2} ) - ( - ( - 5 \frac{1}{4} ) + ( - 6 \frac{2}{3})) = - \frac{11}{4} - \frac{3}{2} + \frac{9}{2} - ( \frac{21}{4} - \frac{20}{3} ) = - \frac{33}{12} - \frac{18}{12} + \frac{54}{12} - ( \frac{63}{12} - \frac{80}{12} ) = - \frac{51}{12} + \frac{54}{12} + \frac{17}{12} = \frac{3}{12} + \frac{17}{12} = \frac{20}{12} = \frac{10}{6} = \frac{5}{3} = 1 \frac{2}{3} [/tex]
c)
[tex]2 - ( - 3.45) + ( - 7.15) - ( - 10.125) - 3.425 = 2 + 3.45 - 7.15 + 10.125 - 3.425 = 5.45 - 7.15 + 10.125 - 3.425 = 8.425 - 3.425 = 5[/tex]
d)
[tex] - 305 + ( - 4.2) - ( - 0.8) + ( - 3 \frac{3}{4} ) - ( - 12 \frac{3}{20}) = - 305 - 4.2 + 0.8 - 3.75 + 12.15 = - 309.2 + 0.8 - 3.75 + 12.15 = - 312.15 + 12.15 = - 300 [/tex]
e)
[tex] - ( - \frac{8}{9} ) - ( - \frac{7}{8} ) + ( - \frac{6}{7} ) - ( - \frac{5}{6} ) - 1 \frac{1}{7} + 2 \frac{1}{8} + \frac{5}{18} = \frac{8}{9} + \frac{7}{8} - \frac{6}{7} + \frac{5}{6} - \frac{8}{7} + \frac{17}{8} + \frac{5}{18} = \frac{8}{9} + \frac{24}{8} - \frac{14}{7} + \frac{5}{6} + \frac{5}{18} = \frac{64}{72} + \frac{216}{72} - \frac{14}{7} + \frac{60}{72} + \frac{20}{72} = \frac{280}{72} - \frac{14}{7} + \frac{80}{72} = \frac{360}{72} - 2 = \frac{360}{72} - \frac{144}{72} = \frac{216}{72} = 3[/tex]
f)
[tex] - ( - ( - (4) - 2 \frac{1}{2} ) - ( - 7)) + ( - ( - 3.2) - 4 \frac{1}{5}) + 0.75 = - ((4 + 2.5) + 7) + (3.2 - 4.5) + 0.75 = - (6.5 + 7) - 1.3 + 0.75 = - 13.5 - 1.3 + 0.75 = - 14.8 + 0.75 = - 14.05 [/tex]
Sprawdzałam i nie powinno być błędów:)
