Răspunsuri

2014-09-26T15:04:47+03:00
Tei = 7 * stejari

stejari = tei - 30

stejari = 7 * stejari - 30=
 
7stejari - stejar= 30
6 stejari = 30

stejari = 30:6
stejari = 5

tei = 7 * 5= 35

poti scrie prescurtat "s" si "t"



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2014-09-26T15:07:48+03:00
T ___/___/___/___/___/___/___/
S___/
7 SEGMENTE - 1 SEGMENT =6 SEGMENTE
6 seg. =30
30 /6 =5
s =5
t =5 * 7 =35


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