①5.58﹣ +5.42﹣
② ×2.5× ×0.4
③
④
⑤
⑥
①99.7×13+ ×13
②12.78﹣(1.17+2.78)﹣3.83
③910÷1.3×0.7
④67× ﹣9÷1.25+ ×2
×75%
÷0.5 ×2
( )