Odpowiedzi

2010-03-01T19:09:06+01:00
A)
4 i 2/3 - 3 i 1/3 x 2 i 1/2=
4⅔-8⅓ =
-3⅔

b)
3/7-(2.5 x 7/25-0.2)=
3/7-(7/10-0,2) =
3/7-1/2 =
-1/14

c)
0.12 x 3/4 -(3/5 -2.1 x 5/7)=
0,09-(3/5-1,5) =
0,09-(-0,9) =
0,99

d)
4x (0.6 - 3/5 : (-3))=
4*(0,6+1/5) =
4*0,8 =
3,2