÷15=4÷5==
= 小数.
看谁算得快.
1﹣+
= 7×(
+
)= 1﹣
÷
=
÷
×0=
10.1×99﹣9.9= 4﹣(
+0.5)= :
=
0.32﹣0.22=
求未知数x
80%x﹣10=30 2.5:=
.
直接写出结果﹣
= 4.5×102=
×6= 270÷18=
5﹣0.25+0.75= 0.42﹣0.32= 2÷= 341﹣103=
13×(2+)= :
=
10×10%= 23.9÷8=
7×÷7×
= 1÷
×
=
0.81+15.3= 1300﹣497= 3﹣1/2= 3/4+0.72=
1÷0.04= 1/8÷0.625= 4.5×4/15= :=
1.5+2/3×3= 1﹣1/3×2/5= 1.25×0.36×8= 1÷(2﹣2.09)=