口算:
4.2÷0.1= 1.25×3= 1÷0.01= 1.25×0.8×=
﹣
=
+
= 14÷3= 0.25×4×0.93=(
+
)×8=
×9﹣9×
=
2.4÷0.04= 125×32= 0.25×0.4==
1.29﹣0.18= 13﹣7.2﹣2.8= 0.88+0.12= 0.42==
=
= :
=
.
直接写得数:0.4﹣=
7.15×2.5×18+1.5×28×7.15=
13÷13=
(﹣
)×35×36=
3+6+9+12+…+96+99=
(+
+
+
+
)+(
+
+
+
)+(
+
+
)+(
+
)+
= .
计算:= ;
﹣
= .
直接写出结果.
1.2﹣0.8= 7.8+0.6= 5.44﹣3.6= 1﹣0.04=
5.8+3.02= 0.67﹣0.58=﹣
=
+
=
﹣
=