-5-3*(-2):6 - 4*(-2):16:15= ?
5+5(31-30:(7-1)-7) =?
1,6*(trzy dziesiąte + 2 i jedna czwarta)=?
(3,24-2,06)*5,2=?
7-3itrzy siudme:2 i dwie dwudziesteczwatre =?
14,52:0,6-30=?
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-5-3*(-2):6-4*(-2) :16:15= -5+6:6+8:16:15=1:6+8:16:15= 1:6+2:15=1/6+2/15=5/30+4/30=9/30=3/10
5+5(31-30:(7-1)-7)=5+5(31-30:6-7)=5+5(31-5-7)=5+5(19)= 5+95=100
1.6*(3/10 +9/4)= 1.6*( 6/20 + 45/20)=1.6*51/20= 16/10*51/20= 816/200=408/100= 4.08