a=24
b=24
c= 24
Calculati:
a+b+c= 24+24+24=72
a-b+c=24-24+24=24
------------------------------------
5. I. a= 6
b= 6
Calculati:
a+b=6+6=12
a-b=6-6=0
a×b=6×6=36
a:b=6:6=1
II. a= 9
b= 9
Calculați:
a×b=9×9=81
a:b=9:9=1
(a:b)×a= ( 9:9)×9=9
(a×b):b=(9×9):9=9