September 2018 2 16 Report

oblicz w pamięci:

a)7/9+4/9=

b)1 2/7+5/7=

c)2 2/5+3 3/5=

d)1-3/5=

e)1-6/11=

f)1-19/25=

g)4/5+2/5=

h)3/4+3/4=

i)3/4-1/2=

prosze pomóżcie mi z tym bo to na jutro


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