October 2018 2 14 Report

Matematyka

Zad. 1

Wykonaj działania

a) 8a+9a

b)11b+(-4b)

c)-13x+7x

d) -9y+(-5y)

e)14w-21w

f)16w+28w-44w

g)-7k-13k

h)6s-5s-7s

i)5/6x+1/6x

j)2 3/4a-1/4a

k)y-2,7y

l)3,2x+0,6x

ł)6b-b-2/7b

m)-3k+2,4k-0,1k


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