Răspuns :
a )
(135+417):2=552:2=276
b )
(7,8+9,3):2=17,1:2=8,55
c )
(1,5+3/2):2=(1,5+1,5):2=3:2=1,5
d )
(1,55+1×11/20):2=(1,55+31/20):2=(1,55+1,55):2=3,1:2=1,55
e )
(3/4+1,25):2=(0,75+1,25):2=2:2=1
f )
(5,84+8,12):2=13,96:2=6,98
(135+417):2=552:2=276
b )
(7,8+9,3):2=17,1:2=8,55
c )
(1,5+3/2):2=(1,5+1,5):2=3:2=1,5
d )
(1,55+1×11/20):2=(1,55+31/20):2=(1,55+1,55):2=3,1:2=1,55
e )
(3/4+1,25):2=(0,75+1,25):2=2:2=1
f )
(5,84+8,12):2=13,96:2=6,98
media aritmetica= numerele impartite la cate sunt
a) 135+417=552:2=276
b) 7,8+9,3=17,1:2=8,55
f) 5,84+8,12=13,96:2=6,98
a) 135+417=552:2=276
b) 7,8+9,3=17,1:2=8,55
f) 5,84+8,12=13,96:2=6,98