Question

scoate factorul comun apoi calculeaza ​

Answer 1

Răspuns:

a) 5*13-5*3=5(13-3)=5*10=50

b)19+19*9=19(1+9)=19*10=190

c)23*11-23=23(11-1)=23*10=230

d)7*8+2*7+10*7=7(8+2+10)=7*20=140

e)41*132-41*32=41(132-32)=41*100=4100

f)37*28+42*37-37*15=37(28+42-15)=37*55=2035

g)27*8+2*27+27*10=27(8+2+10)=27*20=540

h)8*49+8*31-8*50=8(49+31-50)=8*30=240

i)15*99+15*13-15*112=15(99+13-112)=15*0=0

j)25*13+25*8-25*11=25(13+8-11)=25*10=250