直接写出得数.
(1)1﹣0.25=(2)
+
=
(3)2﹣
=(4)0.5×
=
(5)20%÷
=(6)
×30%=
(7)
×
=(8)0÷
=
直接写出得数:
÷
=
÷3=
×
×
=
×9×
=
÷2= 5÷
﹣
÷5= 2.7﹣
= 6×
=
(1.6+3.2)×0.125= 1÷
=
÷10= 6×
=
1﹣75%=
÷
=
×
= 5÷1%=
4÷
=
口算.
+
= 0.5×0.6÷0.5×0.6=82= 0.9+0.01=
4.5﹣2.8﹣0.7=
÷0.75= 1+6÷7= 2÷
=
直接写得数:
275÷4÷25= ; 4.8×25%= ;
÷
÷
= ;
×5÷
×5= ;
﹣
+
= ; 2.74﹣1.4= ;
9.9×99+9.9= ; 8×
×12.5= .
直接写出得数:
26×50= ; 25×0.2= ; 10﹣0.86= ; 4.8÷0.8= ;
1﹣1÷9= ; 125%×8= ;
÷3= ; 24×
= ;
12×(
+
)= ;
= ; 2.5×3.5×0.4= .