Odpowiedź:
a) 3,49-1,6=1,89
c)
[tex]4 \frac{4}{9} \times 2.7 = \frac{40}{9} \times \frac{27}{10} = 12[/tex]
b)
[tex] \sqrt{1 \frac{9}{16} } \times 4 + \frac{3}{5} \div ( - 1 \frac{1}{2} ) {}^{3} = \sqrt{ \frac{25}{16} } \times 4 + \frac{3}{5} \div ( - \frac{3}{2} ) {}^{3} = \frac{5 }{4} \times 4 + \frac{3}{5} \div ( - \frac{27}{8} ) = 5 + \frac{3}{5} \times( - \frac{8}{27} ) = 5 + \frac{8}{45} = 5 \frac{8}{45} [/tex]
