August 2018 1 70 Report
1.Znajdz wyniki działań.Postaraj się liczyć w pamięci.
a)½+¼=
b)¾+½=
c)2¾-½=
d)1¼-½=
e)2½-¾=
f)3¾+2½=
g)15½+6¾=
h)12¼-8½=
2.Znajdz liczbę x:
a)x+4/5=1½
b)x-4/5=1½
c)5 4/9+x=7½
d)x-2¾=5 6/7
e)8 1/12-x=5¼
f)6 3/7-x=2½

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