Question

5.39×199+53.9×0.1怎么简便计算？

Answer 1

可以先把53.9×0.1计算出来既
5.39×199+5.39
=5.39×（199+1）
=5.39×200
=1078

Answer 2

=53.9×19.9+53.9×0.1=53.9×（19.9+0.1）=53.9×20=1078

Answer 3

5•39*199+53.9*0.1
=5.39*199+5.39*1
=5.39*（199+1）
=5.39*200
=1078

Answer 4

5.39×199+53.9×0.1
＝5.39×199+5.39×1
＝5.39×（199+1）
＝5.39×200
＝1078

Answer 5

5.39×199+53.9×0.1
=5.39×199+5.39×1
=5.39×（199+1）
=5.39×200
=1078