Rozwiąż a)2,5+0,3 b)2,315+1,2 c)12,125+29 d)4,5-2,3 e)14,5-11 f)0,028-0,00003 g)1,8x12,405 h)2,35x5,4 i)0,25x40,132 j)0,53x1000 k)18,2:10 l)0,08:10 000 ł)2,6:5,2 m)12,53:100 n)1,2:4 o)37,6:2,35 p)4,37:1000 r)78,05:25 s)10,26:0,009
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Rozwiąż
a)2,5+0,3 =25/10+3/10 =28/10 =14/5=2 i 4/5
b)2,315+1,2 =2315/1000 + 12/10 =2315/1000 +1200/1000 =3515/1000 =5 i 103/200
c)12,125+29 =41,125
d)4,5-2,3=45/10 -23/10 =22/10 =11/5
e)14,5-11 =14 i 5/10 -11 =3 i 5/10 =3 i 1/2
f)0,028-0,00003 28/1000 - 3/100000 =2800/100000 -3/100000 =2797/100000 = 0,02797
g)1,8 ·12,405 =18/10 ·12405/1000 = 223290/10000=22,329
h)2,35 ·5,4 =235/100 · 54/10 =12690/1000 =12,69
i)0,25· 40,132= 25/100 ·40132/1000 =1003300/100000 =10,033
j)0,53· 1000 =530
k)18,2:10 1,82
l)0,08 : 10 000 =0,000008
ł)2,6:5,2 =26/10 :52/10 =26/10 · 10/52 =26/52 =1/2
m)12,53:100 1253/100 · 1/100 =1253/10000 =0,1253
n)1,2:4 = 12/10 ·1/4 =12/40 =3/10
o)37,6:2,35 =376/10 : 235/100 =376/10 · 100/235=376 ·10/235=3760/235=16
p)4,37:1000= 437/100 · 1/1000 =437/100000 =0,00437
r)78,05:25 =7805/100 · 1/25 = 7805/2500=3 i 122/1000 =3 i 61/500
s)10,26:0,009 =1026/100 :9/1000 =1026/100 · 1000/9 =10260/9=3420/3 =1140