Oblicz:
a)2,5+2*1/2=
1/2-(0,1+2/5)=
0,4*1/4+7=
4,4:4+1/4=
B)2/5:(2*0,5)=
2/3*6 :1/4 =
(0,5+1/2)*2=
7,2 -1/8*24=
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a)2,5+2*1/2=2,5+1=3,5
1/2-(0,1+2/5)=1/2-(1/10+4/10)=1/2-5/10=1/2-1/2=0
0,4*1/4+7=4/10*1/4+7=1/10+7=0,1+7=7,1
4,4:4+1/4=1,1+1/4=11/10+1/4=44/40+10/40=54/40=27/20=1 i 7/20
B)2/5:(2*0,5)=2/5:1=2/5
2/3*6 :1/4 =12/3:1/4=12/3*4=48/3=16
(0,5+1/2)*2=1*2=2
7,2 -1/8*24=7,2-24/8=7,2-3=4,2
a)2,5+2*1/2=3,5
1/2-(0,1+2/5)=0
0,4*1/4+7=0,1+7=7,1
4,4:4+1/4=7/20
B)2/5:(2*0,5)=0,4
2/3*6 :1/4 =16
(0,5+1/2)*2=2
7,2 -1/8*24=4,2