如图,同样高的旗杆,离路灯越近,它的影子就越____
求下列各式的相反数与绝对值.
2.5,﹣7,﹣π2,3-2,0.
看一看,找规律。
89000000=____785000≈____509000≈____
My mom ____ ____ and walked away.