Scrieti ca produs de doua numere naturale :
a) 4 ori 3 + 4 ori 2
b) 3 ori 17 + 12 ori 17 - 9 ori 17
c) 31 ori 4 +31
d) 19 ori 7 + 19 ori 3 - 19 + 19 ori 8 .
Ajutatima please ! Urgenttt !

1
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a) 12+8=20
b) 51+204-153=255-153=102
c) 124+31=155
d) 133+57-19+152=323

Răspunsuri

2014-10-06T00:05:37+03:00
A)4*3+4*2=4*(3+2)=4*5
b)3*17+12*17-9*17=17(3+12-9)=17*6
c)31*4+31=31(4+1)=31*5
d)19*7+19*3-19+19*8=19(7+3-1+8)=19*17
3 4 3