25 x 10 + 25 x 5 + 4+7
=250 +125 +4 +7
=375 + 4 +7
=379+7=386 Nhớ tk nha
25 x 10 + 5 + 25 x 4 + 7
= 25 x 10 + 25 x 5 + 4 + 7
= 250 + 125 = 4 + 7
= 375 + 4 + 7
= 379+ 7
= 386
25 x 10 + 5 + 25 x 4 + 7
= 250 + 5 + 100 + 7
= 255 + 100 + 7
= 355 + 7
= 362