August 2018 2 20 Report
Wykonaj działania i oblicz wartość liczbową wytażenia.

a) 4(2-3)-3*(4+1)=

b) 3(2*1+1)-4(7-2)=

c) 9(0,5-7*0,3)-(5*0,3-2*0,5)+20*0,3=

d)(5*0,5+7* 0,25)-8*(0,5+1)+3*(0,5-0,25)=
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