<span>1)а) (-10)*(-0,1)*(-2,5)= -2,5</span>
<span><span>б) (-1/2)*(-2/3)*(-3/4)= -1/4</span></span>
<span><span><span>в)2*(-3)*1/4=-1,5</span></span></span>
<span>г) (-1)*(-3,7)*10=37</span>
<span><span>д)(-1)*2/7*(-7)=2</span></span>
<span><span><span>е) -1/2*2*1/3= -1/3</span></span></span>
<span><span><span><span>2) -3+0,9-1,4-0,2+6,1= 2,4</span></span></span></span>