(1)42.56+3.124=45.684(2)81﹣30.75=50.25(3)15.6十0.237=15.837(4)148.2﹣25.62﹣24.38=98.2 (5)4.52﹣0.74﹣0.26=3.52 (6)0.42+5.4+1.58+2.6=10 (7)5.9+28.65﹣16.57=17.98 (8)57.5﹣3.25﹣16.75=37.5 (9)6.02+3.6+1.98=11.6 (10)1.29+3.7+2.71+6.3=14 (11)3.07﹣0.38﹣1.62=1...
阅读更多