Odpowiedź:
a)
9*10=90
10*5=50
12*7=84
b)
4*6=24
6*10 /2= 30
5*4,8=24
c)
8*10 /2=40
10*5 /2=25
3*4 /2= 12/2=6
d) (5+1)*4 /2= 6*4 /2= 24/2=12
(2+6)*3 /2= 24 /2=12
(19+5)*5 /2= 24*5 /2= 120/2=60
Szczegółowe wyjaśnienie:
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Odpowiedź:
a)
9*10=90
10*5=50
12*7=84
b)
4*6=24
6*10 /2= 30
5*4,8=24
c)
8*10 /2=40
10*5 /2=25
3*4 /2= 12/2=6
d) (5+1)*4 /2= 6*4 /2= 24/2=12
(2+6)*3 /2= 24 /2=12
(19+5)*5 /2= 24*5 /2= 120/2=60
Szczegółowe wyjaśnienie:
a)
9*10=90
10*5=50
12*7=84
b)
4*6=24
6*10 /2= 30
5*4,8=24
c)
8*10 /2=40
10*5 /2=25
3*4 /2= 12/2=6
d) (5+1)*4 /2= 6*4 /2= 24/2=12
(2+6)*3 /2= 24 /2=12
(19+5)*5 /2= 24*5 /2= 120/2=60