November 2018 1 138 Report
Liczby wymierne :

Oblicz. Postaraj się rachunki wykonać w pamięci. ( ułamki bd pisać tak : 1/2 [jedna druga])
Wzór: 0,15 : 3/4 = 0,15 x 4/3 = 0,2 lub 0,15 : 3/4 =0,5/0,15 =15/17= 1/5 lub 0,15 : 3/4 + 3/4 =3/20 x 4/3 = 1/5

a) 8/9 x 0,63 = ...
b) -3,5 x (-2/5) = ...
c) 1,1 : (-0,125) = ...
d) -0,24 : 4/5 = ...
e) 100 x (- 157 3/4) = ...
f) -6 : (-1,2) = ...
g) -49 3/8 : 0,001 = ...


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