$\underline{\text{Poziomo:}}$

$\text{A)}$   $2,6:\left(8,2:4-2\right)=2,6:\left(8\frac{2}{10}:4-2\right)=2\frac{60}{100}:\left(\frac{82}{10}\cdot \frac{1}{4}-2\right)=2\frac{12}{20}:\left(\frac{41}{20}-\frac{40}{20}\right)=\frac{52}{20}:\frac{1}{20}=\frac{52}{20}\cdot \frac{20}{1}=52$

$\text{C)}$   $54\cdot \left(0,5+\frac{1}{3}+4:8\right)=54\cdot \left(\frac{1}{2}+\frac{2}{6}+\frac{1}{2}\right)=54\cdot \left(\frac{3}{6}+\frac{2}{6}+\frac{3}{6}\right)=54\cdot \frac{8}{6}=9\cdot \frac{8}{1}=72$

$\text{E)}$   $10\cdot \left(100,5-16,1:\frac{1}{5}\right)=$ $10\cdot \left(100,5-16,1\cdot \frac{5}{1}\right)=$ $10\cdot \left(100,5-\frac{161}{10}\cdot \frac{5}{1}\right)=$ $10\cdot \left(100,5-\frac{161}{2}\right)=$ $10\cdot \left(100,5-80\frac{1}{2}\right)=$ $10\cdot \left(100,5-80,5\right)=$ $10\cdot 20=$ $200$

$\text{G)}$   $3\frac{3}{4}:15\cdot 1000=\frac{15}{4}\cdot \frac{1}{15}\cdot 1000=250$

$\text{H)}$   $1000-\frac{4}{5}:0,8=1000-\frac{4}{5}:\frac{8}{10}=1000-\frac{4}{5}:\frac{4}{5}=1000-1=999$

$\text{I)}$   $37,1:\left(4-3,9\right)=37,1:0,1=37,1\cdot 10=371$

$\text{J)}$   $\left(6-4\frac{1}{2}\right)\cdot \left(17\frac{3}{5}+12,4\right)=\left(5\frac{2}{2}-4\frac{1}{2}\right)\cdot \left(17\frac{3}{5}+12\frac{2}{5}\right)=1\frac{1}{2}\cdot 29\frac{5}{5}=\frac{3}{2}\cdot 30=\frac{3}{1}\cdot 15=45$

$\text{K)}$   $0,232:0,4\cdot 100=2,32:4\cdot 100=0,58\cdot 100=58$

 

$\underline{\text{Pionowo:}}$

$\text{B)}$   $22000+6\frac{2}{9}\cdot 5\frac{5}{8}=22000+\frac{56}{9}\cdot \frac{45}{8}=22000+\frac{7}{1}\cdot \frac{5}{1}=22000+35=22035$

$\text{C)}$   $\left(700,15+9\right):0,01=709,15\cdot 100=70915$

$\text{D)}$   $330+1\frac{3}{5}\cdot 60=330+\frac{8}{5}\cdot 60=330+96=426$

$\text{F)}$   $3,6\cdot 60-1.3\cdot 20=3,6\cdot 10\cdot 6-1,3\cdot 10\cdot 2=36\cdot 6-13\cdot 2=216-26=190$

 

	5	2		7	2
4		2	0	0		1
2	5	0		9	9	9
6		3	7	1		0
	4	5		5	8