Question

Va rog,ajutati-ma!Dau coroană! Ex 2.Scoate factor comun

Answer 1

a)371(12+71+17)=371x100=37100

b)105(378+33-11)=105x400=42000

c)3116(12+7+9)=3116x28=87248

d)105(1+6+3)=105x10=1050

e)19x17(3+7)=19x17x10=3230

f)54(15x9+15-50)=54(135+15-50)=54x100=5400

g)1990(92-89+3x9)=1990(3+27)=1990x30=59700

Answer 2

a)371·(12+71+17)
b)105·(378+33-11)
c)3116·(12+7-9)
d)105·(5+6+3)
e)19·17(3+7)
f)54·15(9+50)
e)1990·(92-89+3+9)