Question

49.8X2.73+2.73X50.3+0.273等于？用简便运算

Answer 1

＝2.73×（49.8+50.3+ 0.1）＝2.73×100.2＝273.546

追答

2.73×100.2＝2.73×100+2.73×0.2＝273+0.546＝273.546

Answer 2

49,8×2.73+2.73×50.3+2.73×0.1

Answer 3

题写错没？