1. Calculează: a)
[tex]0.4 + \frac{5}{4} \times \frac{7}{3} - \frac{7}{12} \div 2.5 [/tex]
b)
[tex]0.(6) + \frac{2}{3} \div \frac{4}{3} + 0.(2)[/tex]
c)
[tex] \frac{3}{4} \times \frac{8}{9} - \frac{3}{4} \div 6[/tex]
d)
[tex]0.23 \div 2.3 \times 10 + \frac{1}{3} [/tex]
e)
[tex]0.(7) \div \frac{1}{49} + 2.(3) + ( \frac{83}{31} )^{0} [/tex]
f)
[tex](0.5) ^{2} \div \frac{1}{8} + (0.01) ^{2} .10 ^{5} [/tex]

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