August 2018 1 18 Report
Na poziomie kl II gim.

Oblicz stasując wzory skróconego mnożenia:


a)53²-47²=
b)137²-37²=
c)33²-32²=
d)29²-31²=
e)103²-97²=
f)201²-199²=
g)139²-141²=
h)801²-799²
i)1998²-2002²=
j)61²=
k)78²=
l)601²=
m)199²=
n)404²=


Prosze o pomoc ;)
razem z obliczeniami! ;DD
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