Tính nhanh 2017×1001-2017. 36 x486+ 72 x257 03/09/2021 Bởi Faith Tính nhanh 2017×1001-2017. 36 x486+ 72 x257
2017x 1001-2017 = 2017x( 1001-1) = 2017x 1000 = 2017000 36×486+72×257 = 36×486+36x2x257 = 36×486+36×514 = 36x(486+514) = 36×1000 = 36 000 Bình luận
2017×1001-2017 = 2017x(1001-1) = 2017×1000 = 2 017 000 36×486+72×257 = 36×486+36x2x257 = 36×486+36×514 = 36x(486+514) = 36×1000 = 36 000 Bình luận
2017x 1001-2017
= 2017x( 1001-1)
= 2017x 1000
= 2017000
36×486+72×257
= 36×486+36x2x257
= 36×486+36×514
= 36x(486+514)
= 36×1000
= 36 000
2017×1001-2017
= 2017x(1001-1)
= 2017×1000
= 2 017 000
36×486+72×257
= 36×486+36x2x257
= 36×486+36×514
= 36x(486+514)
= 36×1000
= 36 000