灵活计算.
952﹣952÷17 (﹣
×
)
(
+
)×
1.28×5.37﹣2.8×0.537 ×
+
×
×(2009×42×85)
直接写得数.÷
=
÷5.25=
+6.25= 0.74×100=
1÷=
×5+
×8= 15×(
+
)=
直接写得数
32×=
÷
= 99×66+66= 8×98×125=
×(
﹣
)=
398+274=×
÷
×
= 1×0÷1=
÷
= 2÷0.02=
口算:
18000÷600= ; 3.5﹣0.05= ;÷3= ; 3×
÷
= ;
10÷= ; 9×
= ; 4÷
= ;
﹣
×
= .
口算:
2005﹣1998= 1.6×0.05= 5.7÷0.19= 0.125×0.7=÷
=
÷6=
÷
= 40×
=
÷
=
×12=
×
=
×201﹣
=
2.25×4= 1.01﹣0.91= 1÷0.01=÷
=
÷5.25=
+6.25= 0.74×100= 742+258= 7×
÷7×
= 10﹣3.2﹣5.8=