Question

calculati folosind factorul comun:
56•7+7•44-100=
26•54+27•12-32•27=
28•3+28•7-27•10=
12•15-12•3+12=

Answer 1

56·7+7·44-100=392+308-100=600
26·54+27·12-32·27=1404+324-864=216
28·3+28·7-27·10=84+196-270=10
12·15-12·3+12=180-36+12=156
sper ca te-am ajutat!