Odpowiedź:
Zad. 1
a) [tex]\frac{1}{2}*4^{2}:8=\frac{1}{2}*16 :8 = 8:8 = 1[/tex]
b) [tex](\frac{1}{2}) ^{2}:8 * 4=\frac{1}{4}*\frac{1}{8}*4 =\frac{1}{8}[/tex]
c) [tex]8:4*(\frac{1}{2}) ^{2}=2*\frac{1}{4}=\frac{1}{2}[/tex]
d) [tex](8:4)^{2}*\frac{1}{2}=2^{2}*\frac{1}{2}=4*\frac{1}{2}=2[/tex]
Zad. 2
a) [tex]\frac{3}{4}+0,75*1\frac{1}{3}=\frac{3}{4}+\frac{3}{4}*\frac{4}{3}=\frac{3}{4}+1=1\frac{3}{4}[/tex]
b) [tex]3,7-1,2:\frac{1}{2}=3,7-1,2:0,5 = 3,7 -2,4=1,3[/tex]
c) [tex]5*0,3+3*\frac{2}{5}=1,5+3*0,4=1,5+1,2 = 2,7[/tex]
d) [tex]1,2:\frac{1}{3}-1,4*\frac{2}{7}=1\frac{1}{5}:\frac{1}{3}-1\frac{2}{5}*\frac{2}{7}=\frac{6}{5}*3 -\frac{7}{5}*\frac{2}{7}=\frac{18}{5}-\frac{2}{5}=\frac{16}{5}=3\frac{1}{5}[/tex]
Szczegółowe wyjaśnienie:
