Question

Calculati , folosind factorul comun:

a)113*5+13*21+13*40=
b)437*109-437*54+437*203=
c)49*135-49*27+49*11=
d)2011*5+2011*7+2011*49+2011*39=
e)2+4+6+8+10+12=
f)13*17+13*25-42*11-2*41=


Va rog sa ma ajutati !!!!

Answer 1

a)1.358
b)112,746
c)5.831
d)201.100
e)42
f)926