Es.176 pag. 31 15−(20:4)=15−5=10 Es.180 pag.31 [(5−4)•(2•6)•2]:8=[1•12•2]:8=24:8=3 Es.281 pag.36 (2^6 :2^4 )•2^3 −(5^3 :5^3 )•(3^2 •3)=2^2 •2^3 −5^0 •3^3 =2^5 −5^0 •3^3 =2^5 −1•3^3 =32−27=5


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Question Number 118716 by Cristina last updated on 19/Oct/20

$Es . 176 pag . 31$ $15 - (20 : 4) = 15 - 5 = 10$ $Es . 180 pag . 31$ $[(5 - 4) ∙ (2 ∙ 6) ∙ 2] : 8 = [1 ∙ 12 ∙ 2] : 8 = 24 : 8 = 3$ $Es . 281 pag . 36$ $(2^{6} : 2^{4}) ∙ 2^{3} - (5^{3} : 5^{3}) ∙ (3^{2} ∙ 3) = 2^{2} ∙ 2^{3} - 5^{0} ∙ 3^{3} = 2^{5} - 5^{0} ∙ 3^{3} = 2^{5} - 1 ∙ 3^{3} = 32 - 27 = 5$
Commented by prakash jain last updated on 19/Oct/20

$Only post on forum if you want ? to$ $discuss with others and provide$ $some context to post .$
Commented by 1549442205PVT last updated on 19/Oct/20

$Cristina, do you post this information$ $to say what ? What is your question ?$
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