<span>5дм2 = 500 см2</span>
<span>22дм2 = 2200 см2;</span>
<span>68см2 = 6800 мм2 </span>
<span>14м2= 1400 дм2 = 140000см2= 14000000 мм2; </span>
<span>6м2 = 600 дм2= 60000см2 = 6000000мм2; </span>
<span>35дм2 = 3500 см2 = 350000мм2
</span><span> 10дм2 = 1000см2 = 100000мм2;</span>
<span> 30дм2 = 3000см2=300000мм2;</span>
<span> 80см2 = 8000мм2 </span>
<span>26м2 = 2600 дм2= 260000см2 = 26000000мм2;</span>
<span> 18м2 = 1800 дм2= 180000см2 = 18000000мм2;</span>
<span> 70дм2= 7000см2 = 700000мм2</span>
1) 3,42 - 2 5/8 = 3,42 - 2,625 = 0,795
2) 0,795 : 1/50 = 0,795 : 0,02 = 39,75
100-7=93 комплекта без дефекта, 4:93- вероятность
13/3*4*3/8
13/3*3/8=13/8
4/1*13/8=13/2