直接写出得数.3.4﹣1.4= 0.68+0.42= 4.8+2= 0.48+0.52=2+9.1= 8.1﹣5.1= 2.6+2= 0.8+0.18=3.5+0.3= 0.72﹣0.09= 1﹣0.01= 7.82﹣7.2=6.5﹣5.6= 0.78﹣0.24= 0.24+0.6= 0.6+0.34=
653.54+17.16=★ 70﹣23.23=
直接写出得数: 5.4+8.5= 150×6= 6.78+0.23= 10﹣6.5+3.5= 7.5×100= 60×50= 287﹣199= 0.3×125×8= 1﹣0.09= 927÷9= 60÷100= 6.3×99+6.3= 0.61×99≈ 6.9×8.1≈ 71.9÷8.9≈ 3.5+0.78+6.5=
列竖式计算.(带*的题要验算) 42.3+15.9= 10﹣3.8= *15×68= 32×26=
计算下面各题,并且验算: 41.2﹣15.6 21.56+6.74.
(1)30﹣7.6=(2)7.8+5.2=(3)23×13= (4)836÷4=(5)38×24=(6)☆422÷7=