题目

计算下列各式． ①190+[12﹣0.38×（16.4+8.6）]②8.3×2.5+31.7×2.5③1.25×96 ④（120+23）×5+182÷13． 答案：解：①190+[12﹣0.38×（16.4+8.6）]=190+[12﹣0.38×25]=190+[12﹣9.5]=190+2.5=192.5②8.3×2.5+31.7×2.5=（8.3+31.7）×2.5=40×2.5=100③1.25×96=1.25×8×12=10×12=120④（120+23）×5+182÷13=143×5+14=715+14=7291.You don’t like milk, what about________ (have) some fruit.2.This skirt l_______ so nice. How much is it.3.Jim likes these pictures and Tom likes t_______, too.4.A sports star usually has a good e______ habit to keep fit.5.—Where is my baseball, mom? —I t_____ it is in your schoolbag.