<span> (3, 1 * 5, 3 - 14, 39) :1, 7 + 0, 8= 2</span>
<span>3,1*5,3=16,43</span>
<span>16,43-14,39=2,04</span>
<span>2,04:1,7=1,2</span>
<span>1,2+0,8=2</span>
<span>
</span>
<span><span>( 21, 98 - 4, 2 * 4,6) : 1, 9 + 0, 6= 2</span></span>
4,2*4,6=19,32
21,98-19,32=2,66
2,66:1,9=1,4
1,4+0,6=2