Oblicz
a) (3.5/10 +6.6/10 ) - (2.7/10 + 3.1/10 ) = b) ( 3.9 + 11. 7/9 + 4. 2/9 ) - ( 3. 5/9 - 1. 6/9 ) = c) 18.19/21 - ( 3. 6/21 + 1. 4/21 + 5. 9/21 )= d) 1. 8/12 + [12.3/12 -( 3.5/12 + 3.7/12 ) ]=
5 pkt za rozwiązanie + 3 pkt za najlepsze rozwiązanie -
25.2.2015 (18:48)
nelly_looy983 rozwiązane zadania
nelly_looy98
26.2.2015 (09:59)
A) (3.5/10 +6.6/10 ) - (2.7/10 + 3.1/10 ) = 10,1/10-5,8/10=4,3/10
b) ( 3.9/9 + 11.7/9 + 4.2/9 ) - ( 3.5/9 - 1.6/9 ) = 19,8/9-1,9/9=17,9/9
c) 18.19/21 - ( 3. 6/21 + 1. 4/21 + 5. 9/21 )= 18.19/21-10,9/21=7,29/21
d) 1.8/12 + [12.3/12 -( 3.5/12 + 3.7/12 ) ]=1.8/12+(12.3/12-7,2/12)=1.8/12+5,1/12=6,9/12
b) ( 3.9/9 + 11.7/9 + 4.2/9 ) - ( 3.5/9 - 1.6/9 ) = 19,8/9-1,9/9=17,9/9
c) 18.19/21 - ( 3. 6/21 + 1. 4/21 + 5. 9/21 )= 18.19/21-10,9/21=7,29/21
d) 1.8/12 + [12.3/12 -( 3.5/12 + 3.7/12 ) ]=1.8/12+(12.3/12-7,2/12)=1.8/12+5,1/12=6,9/12
Zadania z matematyki
8 pkt - 14.12.2025 (13:05)
8 pkt - 9.11.2025 (18:27)
A=0,43b=5,45556c=0,34714d=0,575