直接写得数．
1.5+3.2= 4+6.86= 3.8+2.5= 0.67+0.8= 0.75﹣0.6= 5.2﹣2.8=
6.4×100= 4﹣2.7= 5.6+4.4= 0.93﹣0.73= 27.5÷10= 7.1﹣4.5=
直接写出得数
0.3+7= 40÷0.5= 1﹣0.01= 5.5a﹣a=
0.125×4= 3.5÷0.05= 8.2÷0.01= 0.7﹣0.7÷2=
用竖式计算并验算．
5.74+94.368=
13.23÷3.5=
直接写出得数．
90.5÷100= 264﹣99= 5﹣2.6= 6.4+3.6= 180÷36=
240﹣70﹣30= 300÷6÷5= 420÷35÷2= 5×6÷5×6= 2.36+4.5+5.5=
直接写出得数．
6.3+3.7= 9﹣1.8= 1.4×0.5= 3.9﹣0.39= 0.49÷0.7= 1.53+0.8=
9.2×0.01= 0.25×12= 0.51÷0.3= 70÷0.5= 1.8×8= 0.75×4=
= 1÷0.25= 
×
÷
=
×
= 
+
= 31×198≈ 4.8×11﹣4.8=