②
③
④
⑤
9.8÷2.7≈(得数保留一位小数)
①9×5.4÷0.9
②9.23×0.5+0.77×0.5
③48.3×10.1-4.83
= = =
= = = = =
×= 18÷= ÷60%= 5.4×= ÷×=
0.088×100= 10.9+1.09= 3.6÷0.3= 900÷45= +-0.37=